Finding the Third Proportional to 16,992 and 18,774

Step by Step Solution

1. Step 1: Write the proportion equation
   16,992 : 18,774 = 18,774 : x
2. Step 2: Convert to fraction form
   16,992/18,774 = 18,774/x
3. Step 3: Cross multiply
   16,992x = 18,774 × 18,774
4. Step 4: Simplify right side
   16,992x = 352,463,076
5. Step 5: Solve for x
   x = 352,463,076/16,992
6. Step 6: Final answer
   x = 20,742.88