Finding the Third Proportional to 10,276.31 and 15,413.91

Step by Step Solution

1. Step 1: Write the proportion equation
   10,276.31 : 15,413.91 = 15,413.91 : x
2. Step 2: Convert to fraction form
   10,276.31/15,413.91 = 15,413.91/x
3. Step 3: Cross multiply
   10,276.31x = 15,413.91 × 15,413.91
4. Step 4: Simplify right side
   10,276.31x = 237,588,505.88
5. Step 5: Solve for x
   x = 237,588,505.88/10,276.31
6. Step 6: Final answer
   x = 23,120.02