Finding the Third Proportional to 8,123,690 and 17,647,864

Step by Step Solution

1. Step 1: Write the proportion equation
   8,123,690 : 17,647,864 = 17,647,864 : x
2. Step 2: Convert to fraction form
   8,123,690/17,647,864 = 17,647,864/x
3. Step 3: Cross multiply
   8,123,690x = 17,647,864 × 17,647,864
4. Step 4: Simplify right side
   8,123,690x = 311,447,103,762,496
5. Step 5: Solve for x
   x = 311,447,103,762,496/8,123,690
6. Step 6: Final answer
   x = 38,338,132.52