Finding the Third Proportional to 25,499 and 54,691

Step by Step Solution

1. Step 1: Write the proportion equation
   25,499 : 54,691 = 54,691 : x
2. Step 2: Convert to fraction form
   25,499/54,691 = 54,691/x
3. Step 3: Cross multiply
   25,499x = 54,691 × 54,691
4. Step 4: Simplify right side
   25,499x = 2,991,105,481
5. Step 5: Solve for x
   x = 2,991,105,481/25,499
6. Step 6: Final answer
   x = 117,302.85