Finding the Third Proportional to 25,458 and 55,818

Step by Step Solution

1. Step 1: Write the proportion equation
   25,458 : 55,818 = 55,818 : x
2. Step 2: Convert to fraction form
   25,458/55,818 = 55,818/x
3. Step 3: Cross multiply
   25,458x = 55,818 × 55,818
4. Step 4: Simplify right side
   25,458x = 3,115,649,124
5. Step 5: Solve for x
   x = 3,115,649,124/25,458
6. Step 6: Final answer
   x = 122,383.89