Moreover, comments by Xi suggest that a United States military strike against Syria, ordered by Trump shortly before the two presidents met, didn't sour the friendly tone of the summit.
The leaders reaffirmed the two countries' commitment to denuclearizing the Korean Peninsula and promised to "fully implement" United Nations sanctions on North Korea amid signs the country is preparing for a sixth nuclear test.
He brought his top economic and national advisers to Florida for the meeting, including Defense Secretary Jim Mattis, Treasury Secretary Steven Mnuchin, and Commerce Secretary Wilbur Ross.
"There is a real commitment to work together to see if this can not be resolved in a peaceful way", said Tillerson. "He's telling the Chinese that, 'Listen, the North Koreans are trying to weaponize intercontinental ballistic missiles, and the rhetoric is they will use them against my country and my people". "That's the first time I've heard them say that in a bilateral context".
He called their relationship "outstanding".
The two men had a working lunch before Xi's motorcade left the resort, ending the summit. The most powerful message for the Chinese leader may have been Trump's decision to launch US missile strikes at Syria.
Despite high expectations an agreement could be struck on North Korea, Secretary of State Rex Tillerson laid out nothing special, saying both sides agreed that Pyongyang's nuclear programs had "reached a very serious stage" and reaffirmed their commitment to a denuclearized Korean peninsula.
Xinhua, China's official news agency, said Xi had invited Trump to make a state visit to China in 2017 and that the USA president had "accepted the invitation with pleasure, and hoped to make the trip at an early date".
"The two sides agreed to undertake an ambitious agenda and meeting schedule to show progress and demonstrate meaningful results", he said.
China's official Xinhua news agency said Xi had encouraged the United States to take part in the "One Belt, One Road" plan, Xi's signature foreign policy imitative aimed at infrastructure development across Asia, Africa and Europe, seen in some policy circles as a partial answer to the pivot to Asia strategy of Trump's predecessor Barack Obama. They remarked generally about "progress" in their relationship and optimism about the future.
President Donald Trump and Chinese President Xi Jinping, with their wives, first lady Melania Trump and Chinese first lady Peng Liyuan are seated during a dinner at Mar-a-Lago, Thursday, April 6, 2017, in Palm Beach, Fla.
"And I believe lots of very potentially bad problems will be going away", he added. Xi, a shrewd political operator, is unlikely to want to rock the boat ahead of a Communist Party conclave later this year that will install new leadership.
South Korea: North Korea fires ballistic missile off east coast
Security Council resolutions and simply can not be tolerated", Japanese Prime Minister Shinzo Abe told reporters. It has also conducted two nuclear weapons tests since January 2016, all in defiance of United Nations sanctions.
The two leaders were later photographed strolling the grounds of Trump's waterfront resort.
"We have a thousand reasons to get China-U.S. relations right, and not one reason to spoil the China-U.S. relationship", Mr. Xi told Mr. Trump.
Another matter that didn't come up was the bankruptcy of Westinghouse Electric Co.'s nuclear reactor business. Trump is certainly not the leader the famously tactical Chinese expected for an American leader, and Xi is not someone the self-proclaimed dealmaker Trump will take lightly.
"We have been looking very carefully at that", Ross said.
Blinken noted that North Korea seeks the USA response to every single provocation and Washington should not play into the hands of the reclusive regime.
The two leaders instead broadly vowed to work more closely to get the North to abandon its nuclear weapons, a vow that Pyongyang has heard many times before.
So, how will Trump handle Xi?
It is also the president's 10th consecutive weekend traveling to a Trump-owned property, the reporter said.
"You hope that, strategically, the comments that [Trump] made to the Financial Times about North Korea - and the decision to bomb Syria - were linked", notes Stone Fish.
The swift action in Syria could be interpreted as a signal especially to defiant nuclear-armed North Korea - and by extension, its ally China - as well as other countries like Iran and Russian Federation of Trump's willingness to use military force if deemed necessary.
"I don't believe there was any immediate nexus, " White House press secretary Sean Spicer told reporters on Friday.