Finding the Third Proportional to 3,940,452 and 8,553,474

Step by Step Solution

1. Step 1: Write the proportion equation
   3,940,452 : 8,553,474 = 8,553,474 : x
2. Step 2: Convert to fraction form
   3,940,452/8,553,474 = 8,553,474/x
3. Step 3: Cross multiply
   3,940,452x = 8,553,474 × 8,553,474
4. Step 4: Simplify right side
   3,940,452x = 73,161,917,468,676
5. Step 5: Solve for x
   x = 73,161,917,468,676/3,940,452
6. Step 6: Final answer
   x = 18,566,884.58