Finding the Third Proportional to 236,259 and 518,449.50

Step by Step Solution

1. Step 1: Write the proportion equation
   236,259 : 518,449.50 = 518,449.50 : x
2. Step 2: Convert to fraction form
   236,259/518,449.50 = 518,449.50/x
3. Step 3: Cross multiply
   236,259x = 518,449.50 × 518,449.50
4. Step 4: Simplify right side
   236,259x = 268,789,884,050.25
5. Step 5: Solve for x
   x = 268,789,884,050.25/236,259
6. Step 6: Final answer
   x = 1,137,691.62