To solve the inequality \( Rx > 10 \), where \( R > 0 \), we can divide both sides of the inequality by \( R \) (since \( R \) is positive, the direction of the inequality will not change):
\[ x > \frac{10}{R} \]
Thus, the solution to the inequality is:
\[ x > \frac{10}{R} \]
This means that \( x \) must be greater than \( \frac{10}{R} \).