Answer
The number we need to find is 72.
Work Step by Step
Let X represent the number.
Two-thirds of the number means $\frac{2}{3}$ $\times$ X.
$\frac{2}{3}$ $\times$ X = $\frac{2X}{3}$
We know that two-thirds of the number equals 48.
So, $\frac{2X}{3}$ = 48.
Multiply both sides by 3.
2X = 144
Divide both sides by 2.
X = 72