Finding the Third Proportional to 90,783,139.50 and 194,791,410

Step by Step Solution

1. Step 1: Write the proportion equation
   90,783,139.50 : 194,791,410 = 194,791,410 : x
2. Step 2: Convert to fraction form
   90,783,139.50/194,791,410 = 194,791,410/x
3. Step 3: Cross multiply
   90,783,139.50x = 194,791,410 × 194,791,410
4. Step 4: Simplify right side
   90,783,139.50x = 37,943,693,409,788,096
5. Step 5: Solve for x
   x = 37,943,693,409,788,096/90,783,139.50
6. Step 6: Final answer
   x = 417,959,696.25