Finding the Third Proportional to 17,908 and 20,500

Step by Step Solution

1. Step 1: Write the proportion equation
   17,908 : 20,500 = 20,500 : x
2. Step 2: Convert to fraction form
   17,908/20,500 = 20,500/x
3. Step 3: Cross multiply
   17,908x = 20,500 × 20,500
4. Step 4: Simplify right side
   17,908x = 420,250,000
5. Step 5: Solve for x
   x = 420,250,000/17,908
6. Step 6: Final answer
   x = 23,467.17