Finding the Third Proportional to 518,339.50 and 773,511.50

Step by Step Solution

1. Step 1: Write the proportion equation
   518,339.50 : 773,511.50 = 773,511.50 : x
2. Step 2: Convert to fraction form
   518,339.50/773,511.50 = 773,511.50/x
3. Step 3: Cross multiply
   518,339.50x = 773,511.50 × 773,511.50
4. Step 4: Simplify right side
   518,339.50x = 598,320,040,632.25
5. Step 5: Solve for x
   x = 598,320,040,632.25/518,339.50
6. Step 6: Final answer
   x = 1,154,301.46