Finding the Third Proportional to 11,871.56 and 25,489.69

Step by Step Solution

1. Step 1: Write the proportion equation
   11,871.56 : 25,489.69 = 25,489.69 : x
2. Step 2: Convert to fraction form
   11,871.56/25,489.69 = 25,489.69/x
3. Step 3: Cross multiply
   11,871.56x = 25,489.69 × 25,489.69
4. Step 4: Simplify right side
   11,871.56x = 649,724,168.85
5. Step 5: Solve for x
   x = 649,724,168.85/11,871.56
6. Step 6: Final answer
   x = 54,729.46