Finding the Third Proportional to 90,783,117.50 and 194,791,366

Step by Step Solution

1. Step 1: Write the proportion equation
   90,783,117.50 : 194,791,366 = 194,791,366 : x
2. Step 2: Convert to fraction form
   90,783,117.50/194,791,366 = 194,791,366/x
3. Step 3: Cross multiply
   90,783,117.50x = 194,791,366 × 194,791,366
4. Step 4: Simplify right side
   90,783,117.50x = 37,943,676,268,145,952
5. Step 5: Solve for x
   x = 37,943,676,268,145,952/90,783,117.50
6. Step 6: Final answer
   x = 417,959,608.71