Finding the Third Proportional to 518,342.50 and 773,516

Step by Step Solution

1. Step 1: Write the proportion equation
   518,342.50 : 773,516 = 773,516 : x
2. Step 2: Convert to fraction form
   518,342.50/773,516 = 773,516/x
3. Step 3: Cross multiply
   518,342.50x = 773,516 × 773,516
4. Step 4: Simplify right side
   518,342.50x = 598,327,002,256
5. Step 5: Solve for x
   x = 598,327,002,256/518,342.50
6. Step 6: Final answer
   x = 1,154,308.21