Finding the Third Proportional to 11,892 and 25,430

Step by Step Solution

1. Step 1: Write the proportion equation
   11,892 : 25,430 = 25,430 : x
2. Step 2: Convert to fraction form
   11,892/25,430 = 25,430/x
3. Step 3: Cross multiply
   11,892x = 25,430 × 25,430
4. Step 4: Simplify right side
   11,892x = 646,684,900
5. Step 5: Solve for x
   x = 646,684,900/11,892
6. Step 6: Final answer
   x = 54,379.83