Finding the Third Proportional to 20,131.50 and 54,338.25

Step by Step Solution

1. Step 1: Write the proportion equation
   20,131.50 : 54,338.25 = 54,338.25 : x
2. Step 2: Convert to fraction form
   20,131.50/54,338.25 = 54,338.25/x
3. Step 3: Cross multiply
   20,131.50x = 54,338.25 × 54,338.25
4. Step 4: Simplify right side
   20,131.50x = 2,952,645,413.06
5. Step 5: Solve for x
   x = 2,952,645,413.06/20,131.50
6. Step 6: Final answer
   x = 146,667.93