Finding the Third Proportional to 54,413.44 and 84,079.69

Step by Step Solution

1. Step 1: Write the proportion equation
   54,413.44 : 84,079.69 = 84,079.69 : x
2. Step 2: Convert to fraction form
   54,413.44/84,079.69 = 84,079.69/x
3. Step 3: Cross multiply
   54,413.44x = 84,079.69 × 84,079.69
4. Step 4: Simplify right side
   54,413.44x = 7,069,393,850.10
5. Step 5: Solve for x
   x = 7,069,393,850.10/54,413.44
6. Step 6: Final answer
   x = 129,920.00