433542*29482993=1,278×10¹³

Let's calculate \( 433542 \times 29482993 \) to verify if it equals \( 1.278 \times 10^{13} \).

Calculating \( 433542 \times 29482993 \):

\[ 433542 \times 29482993 = 12804679004106 \]

Now, let's express \( 12804679004106 \) in scientific notation:

To convert \( 12804679004106 \) to scientific notation, we find a decimal point placement:

\[ 12804679004106 = 1.2804679004106 \times 10^{13} \]

Thus, \( 433542 \times 29482993 \) equals approximately \( 1.2805 \times 10^{13} \), not \( 1.278 \times 10^{13} \).

So, the original statement \( 433542 \times 29482993 = 1.278 \times 10^{13} \) is incorrect. The correct expression is:

\[ 433542 \times 29482993 \approx 1.2805 \times 10^{13} \]