Finding the Third Proportional to 16,170 and 21,726

Step by Step Solution

1. Step 1: Write the proportion equation
   16,170 : 21,726 = 21,726 : x
2. Step 2: Convert to fraction form
   16,170/21,726 = 21,726/x
3. Step 3: Cross multiply
   16,170x = 21,726 × 21,726
4. Step 4: Simplify right side
   16,170x = 472,019,076
5. Step 5: Solve for x
   x = 472,019,076/16,170
6. Step 6: Final answer
   x = 29,191.04