Finding the Third Proportional to 11,892 and 28,122

Step by Step Solution

1. Step 1: Write the proportion equation
   11,892 : 28,122 = 28,122 : x
2. Step 2: Convert to fraction form
   11,892/28,122 = 28,122/x
3. Step 3: Cross multiply
   11,892x = 28,122 × 28,122
4. Step 4: Simplify right side
   11,892x = 790,846,884
5. Step 5: Solve for x
   x = 790,846,884/11,892
6. Step 6: Final answer
   x = 66,502.43