Finding the Third Proportional to 17,643,787.50 and 38,426,670

Step by Step Solution

1. Step 1: Write the proportion equation
   17,643,787.50 : 38,426,670 = 38,426,670 : x
2. Step 2: Convert to fraction form
   17,643,787.50/38,426,670 = 38,426,670/x
3. Step 3: Cross multiply
   17,643,787.50x = 38,426,670 × 38,426,670
4. Step 4: Simplify right side
   17,643,787.50x = 1,476,608,967,288,900
5. Step 5: Solve for x
   x = 1,476,608,967,288,900/17,643,787.50
6. Step 6: Final answer
   x = 83,690,022.18