Finding the Third Proportional to 54,840.50 and 82,665.50

Step by Step Solution

1. Step 1: Write the proportion equation
   54,840.50 : 82,665.50 = 82,665.50 : x
2. Step 2: Convert to fraction form
   54,840.50/82,665.50 = 82,665.50/x
3. Step 3: Cross multiply
   54,840.50x = 82,665.50 × 82,665.50
4. Step 4: Simplify right side
   54,840.50x = 6,833,584,890.25
5. Step 5: Solve for x
   x = 6,833,584,890.25/54,840.50
6. Step 6: Final answer
   x = 124,608.36