Finding the Third Proportional to 253,719 and 545,710.50

Step by Step Solution

1. Step 1: Write the proportion equation
   253,719 : 545,710.50 = 545,710.50 : x
2. Step 2: Convert to fraction form
   253,719/545,710.50 = 545,710.50/x
3. Step 3: Cross multiply
   253,719x = 545,710.50 × 545,710.50
4. Step 4: Simplify right side
   253,719x = 297,799,949,810.25
5. Step 5: Solve for x
   x = 297,799,949,810.25/253,719
6. Step 6: Final answer
   x = 1,173,739.25