To solve the expression \( (1.87 \times 10^9) \times (6.7 \times 10^6) \), we can follow these steps:
-
Multiply the coefficients: \[ 1.87 \times 6.7 \] Using a calculator, this gives: \[ 1.87 \times 6.7 = 12.529 \]
-
Add the exponents: The exponents in our bases of 10 are 9 and 6: \[ 10^9 \times 10^6 = 10^{9+6} = 10^{15} \]
-
Combine the results: Now we combine the coefficient with the power of ten: \[ 12.529 \times 10^{15} \]
-
Express in scientific notation: Scientific notation requires that the coefficient is between 1 and 10. Since \( 12.529 \) is not in this range, we can rewrite it: \[ 12.529 = 1.2529 \times 10^1 \] Therefore, \[ 12.529 \times 10^{15} = 1.2529 \times 10^1 \times 10^{15} = 1.2529 \times 10^{16} \]
Thus, the final answer in scientific notation is: \[ \boxed{1.2529 \times 10^{16}} \]