Finding the Third Proportional to 12,992 and 19,792

Step by Step Solution

1. Step 1: Write the proportion equation
   12,992 : 19,792 = 19,792 : x
2. Step 2: Convert to fraction form
   12,992/19,792 = 19,792/x
3. Step 3: Cross multiply
   12,992x = 19,792 × 19,792
4. Step 4: Simplify right side
   12,992x = 391,723,264
5. Step 5: Solve for x
   x = 391,723,264/12,992
6. Step 6: Final answer
   x = 30,151.11