Finding the Third Proportional to 12,521.25 and 26,439.75

Step by Step Solution

1. Step 1: Write the proportion equation
   12,521.25 : 26,439.75 = 26,439.75 : x
2. Step 2: Convert to fraction form
   12,521.25/26,439.75 = 26,439.75/x
3. Step 3: Cross multiply
   12,521.25x = 26,439.75 × 26,439.75
4. Step 4: Simplify right side
   12,521.25x = 699,060,380.06
5. Step 5: Solve for x
   x = 699,060,380.06/12,521.25
6. Step 6: Final answer
   x = 55,829.92