Finding the Third Proportional to 11,880 and 25,351.31

Step by Step Solution

1. Step 1: Write the proportion equation
   11,880 : 25,351.31 = 25,351.31 : x
2. Step 2: Convert to fraction form
   11,880/25,351.31 = 25,351.31/x
3. Step 3: Cross multiply
   11,880x = 25,351.31 × 25,351.31
4. Step 4: Simplify right side
   11,880x = 642,689,045.47
5. Step 5: Solve for x
   x = 642,689,045.47/11,880
6. Step 6: Final answer
   x = 54,098.40