Finding the Third Proportional to 17,960 and 39,540

Step by Step Solution

1. Step 1: Write the proportion equation
   17,960 : 39,540 = 39,540 : x
2. Step 2: Convert to fraction form
   17,960/39,540 = 39,540/x
3. Step 3: Cross multiply
   17,960x = 39,540 × 39,540
4. Step 4: Simplify right side
   17,960x = 1,563,411,600
5. Step 5: Solve for x
   x = 1,563,411,600/17,960
6. Step 6: Final answer
   x = 87,049.64