Finding the Third Proportional to 16,632 and 18,306

Step by Step Solution

1. Step 1: Write the proportion equation
   16,632 : 18,306 = 18,306 : x
2. Step 2: Convert to fraction form
   16,632/18,306 = 18,306/x
3. Step 3: Cross multiply
   16,632x = 18,306 × 18,306
4. Step 4: Simplify right side
   16,632x = 335,109,636
5. Step 5: Solve for x
   x = 335,109,636/16,632
6. Step 6: Final answer
   x = 20,148.49