Finding the Third Proportional to 39,413.25 and 86,491.38

Step by Step Solution

1. Step 1: Write the proportion equation
   39,413.25 : 86,491.38 = 86,491.38 : x
2. Step 2: Convert to fraction form
   39,413.25/86,491.38 = 86,491.38/x
3. Step 3: Cross multiply
   39,413.25x = 86,491.38 × 86,491.38
4. Step 4: Simplify right side
   39,413.25x = 7,480,757,949.39
5. Step 5: Solve for x
   x = 7,480,757,949.39/39,413.25
6. Step 6: Final answer
   x = 189,803.12