Finding the Third Proportional to 236,909 and 518,104.50

Step by Step Solution

1. Step 1: Write the proportion equation
   236,909 : 518,104.50 = 518,104.50 : x
2. Step 2: Convert to fraction form
   236,909/518,104.50 = 518,104.50/x
3. Step 3: Cross multiply
   236,909x = 518,104.50 × 518,104.50
4. Step 4: Simplify right side
   236,909x = 268,432,272,920.25
5. Step 5: Solve for x
   x = 268,432,272,920.25/236,909
6. Step 6: Final answer
   x = 1,133,060.68