Finding the Third Proportional to 329,764.50 and 718,578

Step by Step Solution

1. Step 1: Write the proportion equation
   329,764.50 : 718,578 = 718,578 : x
2. Step 2: Convert to fraction form
   329,764.50/718,578 = 718,578/x
3. Step 3: Cross multiply
   329,764.50x = 718,578 × 718,578
4. Step 4: Simplify right side
   329,764.50x = 516,354,342,084
5. Step 5: Solve for x
   x = 516,354,342,084/329,764.50
6. Step 6: Final answer
   x = 1,565,827.56