Finding the Third Proportional to 325,978.59 and 498,653.72

Step by Step Solution

1. Step 1: Write the proportion equation
   325,978.59 : 498,653.72 = 498,653.72 : x
2. Step 2: Convert to fraction form
   325,978.59/498,653.72 = 498,653.72/x
3. Step 3: Cross multiply
   325,978.59x = 498,653.72 × 498,653.72
4. Step 4: Simplify right side
   325,978.59x = 248,655,531,223.20
5. Step 5: Solve for x
   x = 248,655,531,223.20/325,978.59
6. Step 6: Final answer
   x = 762,797.12