OK,
I opened your recipe and I think I found the issue. The forbidden fruit yeast is listed as a wheat yeast, while the others are listed as ale yeasts.
There are three different yeast pitch rates you can actually set from the Options->Yeast Starter tab. One is used for ale (0.75 million cells per milliliter per degree plato), a higher rate is used for hybrids such as wheat yeast (1.0 million cells/ml-P) and a third rate for lagers (1.5 million cells/ml-P).
When you select a wheat yeast such as the forbidden fruit, BeerSmith uses the "hybrid" pitch rate requirement to calculate the yeast cells needed - which increases the number of cells needed by about 33% over an ale. If you picked a lager yeast you would see a much larger increase (100%!).
The 725 billion cells corresponds to the higher pitch rate of 1 million cells/ml-P for a wheat (hybrid) beer.
If you really don't want to use the higher hybrid pitch rate, you can either adjust the pitch rate under Options->Yeast Starter or you can change the yeast type to "Ale" for this recipe only.
Cheers,
Brad