Finding the Third Proportional to 17,002 and 18,658

Step by Step Solution

1. Step 1: Write the proportion equation
   17,002 : 18,658 = 18,658 : x
2. Step 2: Convert to fraction form
   17,002/18,658 = 18,658/x
3. Step 3: Cross multiply
   17,002x = 18,658 × 18,658
4. Step 4: Simplify right side
   17,002x = 348,120,964
5. Step 5: Solve for x
   x = 348,120,964/17,002
6. Step 6: Final answer
   x = 20,475.29