Finding the Third Proportional to 15,500 and 17,612

Step by Step Solution

1. Step 1: Write the proportion equation
   15,500 : 17,612 = 17,612 : x
2. Step 2: Convert to fraction form
   15,500/17,612 = 17,612/x
3. Step 3: Cross multiply
   15,500x = 17,612 × 17,612
4. Step 4: Simplify right side
   15,500x = 310,182,544
5. Step 5: Solve for x
   x = 310,182,544/15,500
6. Step 6: Final answer
   x = 20,011.78