Answer
$$\log_3 10,~~~\frac{\log10}{\log 3},~~~\frac{\ln10}{\ln3}$$
Work Step by Step
As it is in the example, the solution of $3^x=10$ can be written in three forms:
$$\log_3 10,~~~\frac{\log10}{\log 3},~~~\frac{\ln10}{\ln3}$$
Also the middle term can be written as $\dfrac{1}{\log 3}$
