1. **State the problem:** Calculate $4.8 \times 10^6 + 3.7 \times 10^7$ and express the answer in standard form. 2. **Recall the standard form:** A number in standard form is written as $a \times 10^n$ where $1 \leq a < 10$ and $n$ is an integer. 3. **Rewrite the terms with the same power of 10:** $4.8 \times 10^6$ can be rewritten as $0.48 \times 10^7$ to match the power of $10^7$ in the second term. 4. **Add the coefficients:** $0.48 + 3.7 = 4.18$ 5. **Combine the result:** $4.18 \times 10^7$ 6. **Check if the coefficient is between 1 and 10:** Since $4.18$ is between 1 and 10, the number is already in standard form. **Final answer:** $$4.18 \times 10^7$$