1. You'd divide 98,000,000 by 750,000 and get about 131 trees per acre ("population" density).
2. 131 trees/acre x 750,000 = 98,250,000trees.
Then 292,000,000 divided by98,250,000, which is 2.9 Round up to 3 boxes/tree.
Hope I helped. Hope this makes sense.