Finding the Third Proportional to 16,662 and 18,102

Step by Step Solution

1. Step 1: Write the proportion equation
   16,662 : 18,102 = 18,102 : x
2. Step 2: Convert to fraction form
   16,662/18,102 = 18,102/x
3. Step 3: Cross multiply
   16,662x = 18,102 × 18,102
4. Step 4: Simplify right side
   16,662x = 327,682,404
5. Step 5: Solve for x
   x = 327,682,404/16,662
6. Step 6: Final answer
   x = 19,666.45