Finding the Third Proportional to 3,708,990 and 7,816,500

Step by Step Solution

1. Step 1: Write the proportion equation
   3,708,990 : 7,816,500 = 7,816,500 : x
2. Step 2: Convert to fraction form
   3,708,990/7,816,500 = 7,816,500/x
3. Step 3: Cross multiply
   3,708,990x = 7,816,500 × 7,816,500
4. Step 4: Simplify right side
   3,708,990x = 61,097,672,250,000
5. Step 5: Solve for x
   x = 61,097,672,250,000/3,708,990
6. Step 6: Final answer
   x = 16,472,859.79