Finding the Third Proportional to 357,301.50 and 784,609.50

Step by Step Solution

1. Step 1: Write the proportion equation
   357,301.50 : 784,609.50 = 784,609.50 : x
2. Step 2: Convert to fraction form
   357,301.50/784,609.50 = 784,609.50/x
3. Step 3: Cross multiply
   357,301.50x = 784,609.50 × 784,609.50
4. Step 4: Simplify right side
   357,301.50x = 615,612,067,490.25
5. Step 5: Solve for x
   x = 615,612,067,490.25/357,301.50
6. Step 6: Final answer
   x = 1,722,948.46