Finding the Third Proportional to 12,111.75 and 25,691.63

Step by Step Solution

1. Step 1: Write the proportion equation
   12,111.75 : 25,691.63 = 25,691.63 : x
2. Step 2: Convert to fraction form
   12,111.75/25,691.63 = 25,691.63/x
3. Step 3: Cross multiply
   12,111.75x = 25,691.63 × 25,691.63
4. Step 4: Simplify right side
   12,111.75x = 660,059,595.14
5. Step 5: Solve for x
   x = 660,059,595.14/12,111.75
6. Step 6: Final answer
   x = 54,497.46