what is 729 over 12 times itself two more times equal?
Umm I am not sure what you mean :/
maybe.......
$$\frac{729}{12}*x*x = \frac{729x^2}{12}$$
$${\frac{{\mathtt{729}}}{{\mathtt{12}}}} = {\frac{{\mathtt{243}}}{{\mathtt{4}}}} = {\mathtt{60.75}}$$
$${{\mathtt{60.75}}}^{{\mathtt{3}}} = {\mathtt{224\,201.671\: \!875}}$$
answer: 224, 201.671, 875