Finding the Third Proportional to 54,139 and 118,105

Step by Step Solution

1. Step 1: Write the proportion equation
   54,139 : 118,105 = 118,105 : x
2. Step 2: Convert to fraction form
   54,139/118,105 = 118,105/x
3. Step 3: Cross multiply
   54,139x = 118,105 × 118,105
4. Step 4: Simplify right side
   54,139x = 13,948,791,025
5. Step 5: Solve for x
   x = 13,948,791,025/54,139
6. Step 6: Final answer
   x = 257,647.74