Finding the Third Proportional to 12,992 and 20,922

Step by Step Solution

1. Step 1: Write the proportion equation
   12,992 : 20,922 = 20,922 : x
2. Step 2: Convert to fraction form
   12,992/20,922 = 20,922/x
3. Step 3: Cross multiply
   12,992x = 20,922 × 20,922
4. Step 4: Simplify right side
   12,992x = 437,730,084
5. Step 5: Solve for x
   x = 437,730,084/12,992
6. Step 6: Final answer
   x = 33,692.28