Finding the Third Proportional to 90,784,845.50 and 188,029,468

Step by Step Solution

1. Step 1: Write the proportion equation
   90,784,845.50 : 188,029,468 = 188,029,468 : x
2. Step 2: Convert to fraction form
   90,784,845.50/188,029,468 = 188,029,468/x
3. Step 3: Cross multiply
   90,784,845.50x = 188,029,468 × 188,029,468
4. Step 4: Simplify right side
   90,784,845.50x = 35,355,080,836,363,024
5. Step 5: Solve for x
   x = 35,355,080,836,363,024/90,784,845.50
6. Step 6: Final answer
   x = 389,438,134.10