No actually, you got it wrong yet again. With the average growth rate of 1.3, US population would be: 325,946,526
Pretty damn close for a bad equation.
Actually, the 1,3 number was obtained post factum. Let's take immigration into account - and we'll get a number of, at most, ~0,6-0,8 (average for the last century) - which in in steep decrease (for the last decades or so, the figure is actually below the replacement factor in most developed countries).
You see? It's easy to do - doctoring the data to get what you want and be in rough conformity with the facts.
If you use such numbers, you can obtain a curve blunt enough to match almost anything you want. And it's getting blunter.
Needless to say, you can never predict anything with such methods.
And 325946526 is pretty far from your 'conservative' 0,02 per year which gave 713893177.
And yet, you go ahead with malthus this, malthus that.