Finding the Third Proportional to 54,258.50 and 118,318

Step by Step Solution

1. Step 1: Write the proportion equation
   54,258.50 : 118,318 = 118,318 : x
2. Step 2: Convert to fraction form
   54,258.50/118,318 = 118,318/x
3. Step 3: Cross multiply
   54,258.50x = 118,318 × 118,318
4. Step 4: Simplify right side
   54,258.50x = 13,999,149,124
5. Step 5: Solve for x
   x = 13,999,149,124/54,258.50
6. Step 6: Final answer
   x = 258,008.41