Finding the Third Proportional to 54,458 and 118,604.75

Step by Step Solution

1. Step 1: Write the proportion equation
   54,458 : 118,604.75 = 118,604.75 : x
2. Step 2: Convert to fraction form
   54,458/118,604.75 = 118,604.75/x
3. Step 3: Cross multiply
   54,458x = 118,604.75 × 118,604.75
4. Step 4: Simplify right side
   54,458x = 14,067,086,722.56
5. Step 5: Solve for x
   x = 14,067,086,722.56/54,458
6. Step 6: Final answer
   x = 258,310.75