Finding the Third Proportional to 12,992 and 28,171

Step by Step Solution

1. Step 1: Write the proportion equation
   12,992 : 28,171 = 28,171 : x
2. Step 2: Convert to fraction form
   12,992/28,171 = 28,171/x
3. Step 3: Cross multiply
   12,992x = 28,171 × 28,171
4. Step 4: Simplify right side
   12,992x = 793,605,241
5. Step 5: Solve for x
   x = 793,605,241/12,992
6. Step 6: Final answer
   x = 61,084.15