Finding the Third Proportional to 16,490,846 and 25,678,551

Step by Step Solution

1. Step 1: Write the proportion equation
   16,490,846 : 25,678,551 = 25,678,551 : x
2. Step 2: Convert to fraction form
   16,490,846/25,678,551 = 25,678,551/x
3. Step 3: Cross multiply
   16,490,846x = 25,678,551 × 25,678,551
4. Step 4: Simplify right side
   16,490,846x = 659,387,981,459,601
5. Step 5: Solve for x
   x = 659,387,981,459,601/16,490,846
6. Step 6: Final answer
   x = 39,985,091.21