Finding the Third Proportional to 12,557.25 and 25,931.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,557.25 : 25,931.25 = 25,931.25 : x
2. Step 2: Convert to fraction form
   12,557.25/25,931.25 = 25,931.25/x
3. Step 3: Cross multiply
   12,557.25x = 25,931.25 × 25,931.25
4. Step 4: Simplify right side
   12,557.25x = 672,429,726.56
5. Step 5: Solve for x
   x = 672,429,726.56/12,557.25
6. Step 6: Final answer
   x = 53,549.12