Finding the Third Proportional to 25,218 and 54,856

Step by Step Solution

1. Step 1: Write the proportion equation
   25,218 : 54,856 = 54,856 : x
2. Step 2: Convert to fraction form
   25,218/54,856 = 54,856/x
3. Step 3: Cross multiply
   25,218x = 54,856 × 54,856
4. Step 4: Simplify right side
   25,218x = 3,009,180,736
5. Step 5: Solve for x
   x = 3,009,180,736/25,218
6. Step 6: Final answer
   x = 119,326.70