Finding the Third Proportional to 155,413.69 and 335,636.16

Step by Step Solution

1. Step 1: Write the proportion equation
   155,413.69 : 335,636.16 = 335,636.16 : x
2. Step 2: Convert to fraction form
   155,413.69/335,636.16 = 335,636.16/x
3. Step 3: Cross multiply
   155,413.69x = 335,636.16 × 335,636.16
4. Step 4: Simplify right side
   155,413.69x = 112,651,629,382.27
5. Step 5: Solve for x
   x = 112,651,629,382.27/155,413.69
6. Step 6: Final answer
   x = 724,850.12