Finding the Third Proportional to 155,413.69 and 192,820.50

Step by Step Solution

1. Step 1: Write the proportion equation
   155,413.69 : 192,820.50 = 192,820.50 : x
2. Step 2: Convert to fraction form
   155,413.69/192,820.50 = 192,820.50/x
3. Step 3: Cross multiply
   155,413.69x = 192,820.50 × 192,820.50
4. Step 4: Simplify right side
   155,413.69x = 37,179,745,220.25
5. Step 5: Solve for x
   x = 37,179,745,220.25/155,413.69
6. Step 6: Final answer
   x = 239,230.83