Finding the Third Proportional to 16,560 and 25,440

Step by Step Solution

1. Step 1: Write the proportion equation
   16,560 : 25,440 = 25,440 : x
2. Step 2: Convert to fraction form
   16,560/25,440 = 25,440/x
3. Step 3: Cross multiply
   16,560x = 25,440 × 25,440
4. Step 4: Simplify right side
   16,560x = 647,193,600
5. Step 5: Solve for x
   x = 647,193,600/16,560
6. Step 6: Final answer
   x = 39,081.74