Finding the Third Proportional to 54,048.75 and 86,341.50

Step by Step Solution

1. Step 1: Write the proportion equation
   54,048.75 : 86,341.50 = 86,341.50 : x
2. Step 2: Convert to fraction form
   54,048.75/86,341.50 = 86,341.50/x
3. Step 3: Cross multiply
   54,048.75x = 86,341.50 × 86,341.50
4. Step 4: Simplify right side
   54,048.75x = 7,454,854,622.25
5. Step 5: Solve for x
   x = 7,454,854,622.25/54,048.75
6. Step 6: Final answer
   x = 137,928.34