Finding the Third Proportional to 143,048.25 and 216,413.25

Step by Step Solution

1. Step 1: Write the proportion equation
   143,048.25 : 216,413.25 = 216,413.25 : x
2. Step 2: Convert to fraction form
   143,048.25/216,413.25 = 216,413.25/x
3. Step 3: Cross multiply
   143,048.25x = 216,413.25 × 216,413.25
4. Step 4: Simplify right side
   143,048.25x = 46,834,694,775.56
5. Step 5: Solve for x
   x = 46,834,694,775.56/143,048.25
6. Step 6: Final answer
   x = 327,404.88