Finding the Third Proportional to 16,692 and 18,132

Step by Step Solution

1. Step 1: Write the proportion equation
   16,692 : 18,132 = 18,132 : x
2. Step 2: Convert to fraction form
   16,692/18,132 = 18,132/x
3. Step 3: Cross multiply
   16,692x = 18,132 × 18,132
4. Step 4: Simplify right side
   16,692x = 328,769,424
5. Step 5: Solve for x
   x = 328,769,424/16,692
6. Step 6: Final answer
   x = 19,696.23