Finding the Third Proportional to 359,275.50 and 784,673

Step by Step Solution

1. Step 1: Write the proportion equation
   359,275.50 : 784,673 = 784,673 : x
2. Step 2: Convert to fraction form
   359,275.50/784,673 = 784,673/x
3. Step 3: Cross multiply
   359,275.50x = 784,673 × 784,673
4. Step 4: Simplify right side
   359,275.50x = 615,711,716,929
5. Step 5: Solve for x
   x = 615,711,716,929/359,275.50
6. Step 6: Final answer
   x = 1,713,759.27