Finding the Third Proportional to 17,156 and 18,992

Step by Step Solution

1. Step 1: Write the proportion equation
   17,156 : 18,992 = 18,992 : x
2. Step 2: Convert to fraction form
   17,156/18,992 = 18,992/x
3. Step 3: Cross multiply
   17,156x = 18,992 × 18,992
4. Step 4: Simplify right side
   17,156x = 360,696,064
5. Step 5: Solve for x
   x = 360,696,064/17,156
6. Step 6: Final answer
   x = 21,024.48