Finding the Third Proportional to 16,553,686.50 and 38,664,570.38

Step by Step Solution

1. Step 1: Write the proportion equation
   16,553,686.50 : 38,664,570.38 = 38,664,570.38 : x
2. Step 2: Convert to fraction form
   16,553,686.50/38,664,570.38 = 38,664,570.38/x
3. Step 3: Cross multiply
   16,553,686.50x = 38,664,570.38 × 38,664,570.38
4. Step 4: Simplify right side
   16,553,686.50x = 1,494,949,002,283,327.75
5. Step 5: Solve for x
   x = 1,494,949,002,283,327.75/16,553,686.50
6. Step 6: Final answer
   x = 90,309,128.56