Finding the Third Proportional to 54.42 and 118.34

Step by Step Solution

1. Step 1: Write the proportion equation
   54.42 : 118.34 = 118.34 : x
2. Step 2: Convert to fraction form
   54.42/118.34 = 118.34/x
3. Step 3: Cross multiply
   54.42x = 118.34 × 118.34
4. Step 4: Simplify right side
   54.42x = 14,003.39
5. Step 5: Solve for x
   x = 14,003.39/54.42
6. Step 6: Final answer
   x = 257.31