Finding the Third Proportional to 249,724 and 539,350.50

Step by Step Solution

1. Step 1: Write the proportion equation
   249,724 : 539,350.50 = 539,350.50 : x
2. Step 2: Convert to fraction form
   249,724/539,350.50 = 539,350.50/x
3. Step 3: Cross multiply
   249,724x = 539,350.50 × 539,350.50
4. Step 4: Simplify right side
   249,724x = 290,898,961,850.25
5. Step 5: Solve for x
   x = 290,898,961,850.25/249,724
6. Step 6: Final answer
   x = 1,164,881.88