Finding the Third Proportional to 127,231.50 and 254,449.50

Step by Step Solution

1. Step 1: Write the proportion equation
   127,231.50 : 254,449.50 = 254,449.50 : x
2. Step 2: Convert to fraction form
   127,231.50/254,449.50 = 254,449.50/x
3. Step 3: Cross multiply
   127,231.50x = 254,449.50 × 254,449.50
4. Step 4: Simplify right side
   127,231.50x = 64,744,548,050.25
5. Step 5: Solve for x
   x = 64,744,548,050.25/127,231.50
6. Step 6: Final answer
   x = 508,872.00