Finding the Third Proportional to 12,111.75 and 25,665.75

Step by Step Solution

1. Step 1: Write the proportion equation
   12,111.75 : 25,665.75 = 25,665.75 : x
2. Step 2: Convert to fraction form
   12,111.75/25,665.75 = 25,665.75/x
3. Step 3: Cross multiply
   12,111.75x = 25,665.75 × 25,665.75
4. Step 4: Simplify right side
   12,111.75x = 658,730,723.06
5. Step 5: Solve for x
   x = 658,730,723.06/12,111.75
6. Step 6: Final answer
   x = 54,387.74