To find the numerical equivalent of \( 10^2 \cdot 10^3 \), you can use the property of exponents that states \( a^m \cdot a^n = a^{m+n} \).
Applying this, we get:
\[ 10^2 \cdot 10^3 = 10^{2+3} = 10^5 \]
So, the numerical equivalent is \( 10^5 \). Among the given responses, the correct one is:
10^5 (10 superscript 5 baseline).