Finding the Third Proportional to 359,276.50 and 784,674.50

Step by Step Solution

1. Step 1: Write the proportion equation
   359,276.50 : 784,674.50 = 784,674.50 : x
2. Step 2: Convert to fraction form
   359,276.50/784,674.50 = 784,674.50/x
3. Step 3: Cross multiply
   359,276.50x = 784,674.50 × 784,674.50
4. Step 4: Simplify right side
   359,276.50x = 615,714,070,950.25
5. Step 5: Solve for x
   x = 615,714,070,950.25/359,276.50
6. Step 6: Final answer
   x = 1,713,761.05