Finding the Third Proportional to 236,887.50 and 518,059.50

Step by Step Solution

1. Step 1: Write the proportion equation
   236,887.50 : 518,059.50 = 518,059.50 : x
2. Step 2: Convert to fraction form
   236,887.50/518,059.50 = 518,059.50/x
3. Step 3: Cross multiply
   236,887.50x = 518,059.50 × 518,059.50
4. Step 4: Simplify right side
   236,887.50x = 268,385,645,540.25
5. Step 5: Solve for x
   x = 268,385,645,540.25/236,887.50
6. Step 6: Final answer
   x = 1,132,966.68