Finding the Third Proportional to 123,570 and 254,517.75

Step by Step Solution

1. Step 1: Write the proportion equation
   123,570 : 254,517.75 = 254,517.75 : x
2. Step 2: Convert to fraction form
   123,570/254,517.75 = 254,517.75/x
3. Step 3: Cross multiply
   123,570x = 254,517.75 × 254,517.75
4. Step 4: Simplify right side
   123,570x = 64,779,285,065.06
5. Step 5: Solve for x
   x = 64,779,285,065.06/123,570
6. Step 6: Final answer
   x = 524,231.49