To find the total area of the national park and the national forest together, you simply add the two areas together:
- National Park: \(1.24 \times 10^6\) acres
- National Forest: \(2.1 \times 10^6\) acres
Let's perform the addition:
\[ 1.24 \times 10^6 + 2.1 \times 10^6 = (1.24 + 2.1) \times 10^6 = 3.34 \times 10^6 \]
Therefore, the total number of acres in the park and the forest together is \(3.34 \times 10^6\) acres.