Finding the Third Proportional to 38,886.75 and 79,413.38

Step by Step Solution

1. Step 1: Write the proportion equation
   38,886.75 : 79,413.38 = 79,413.38 : x
2. Step 2: Convert to fraction form
   38,886.75/79,413.38 = 79,413.38/x
3. Step 3: Cross multiply
   38,886.75x = 79,413.38 × 79,413.38
4. Step 4: Simplify right side
   38,886.75x = 6,306,484,128.89
5. Step 5: Solve for x
   x = 6,306,484,128.89/38,886.75
6. Step 6: Final answer
   x = 162,175.65