Finding the Third Proportional to 236,349 and 518,620.50

Step by Step Solution

1. Step 1: Write the proportion equation
   236,349 : 518,620.50 = 518,620.50 : x
2. Step 2: Convert to fraction form
   236,349/518,620.50 = 518,620.50/x
3. Step 3: Cross multiply
   236,349x = 518,620.50 × 518,620.50
4. Step 4: Simplify right side
   236,349x = 268,967,223,020.25
5. Step 5: Solve for x
   x = 268,967,223,020.25/236,349
6. Step 6: Final answer
   x = 1,138,008.72