Not really that simple. Dozens have countries have all of those things. Typically they just remain poor.

Political stability is probably a big part of it. China hasn’t done great in this area but it has outperformed most developing countries. From 1980 to 2010 they had a talented string of leaders. Seems that has ended in the last few years though so unclear what happens next.

One child policy is probably some of it too. They had a few decades with a lot of young adults relative to the elderly and children. Again, about to hit a demographic brick wall but it did help dig them out of poverty.

Not sure if you're talking about how China has jumped the US or how the US got there in the first place lol