Finding the Third Proportional to 65,280.25 and 88,078.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,280.25 : 88,078.50 = 88,078.50 : x
2. Step 2: Convert to fraction form
   65,280.25/88,078.50 = 88,078.50/x
3. Step 3: Cross multiply
   65,280.25x = 88,078.50 × 88,078.50
4. Step 4: Simplify right side
   65,280.25x = 7,757,822,162.25
5. Step 5: Solve for x
   x = 7,757,822,162.25/65,280.25
6. Step 6: Final answer
   x = 118,838.73