1. **State the problem:** We need to calculate $$(4.9 \times 10^7) + (3.1 \times 10^6)$$ and express the answer in standard form. 2. **Rewrite the first term:** Given that $$4.9 \times 10^7 = 49 \times 10^6$$, we can rewrite the expression as: $$49 \times 10^6 + 3.1 \times 10^6$$ 3. **Add the terms:** Since both terms have the same power of 10, we can add the coefficients: $$49 + 3.1 = 52.1$$ So, $$52.1 \times 10^6$$ 4. **Convert to standard form:** Standard form requires the coefficient to be between 1 and 10. We rewrite: $$52.1 \times 10^6 = 5.21 \times 10^{1} \times 10^6 = 5.21 \times 10^{7}$$ 5. **Final answer:** $$\boxed{5.21 \times 10^7}$$