Finding the Third Proportional to 353,126 and 784,711.50

Step by Step Solution

1. Step 1: Write the proportion equation
   353,126 : 784,711.50 = 784,711.50 : x
2. Step 2: Convert to fraction form
   353,126/784,711.50 = 784,711.50/x
3. Step 3: Cross multiply
   353,126x = 784,711.50 × 784,711.50
4. Step 4: Simplify right side
   353,126x = 615,772,138,232.25
5. Step 5: Solve for x
   x = 615,772,138,232.25/353,126
6. Step 6: Final answer
   x = 1,743,774.57