Finding the Third Proportional to 10,391.25 and 15,503.25

Step by Step Solution

1. Step 1: Write the proportion equation
   10,391.25 : 15,503.25 = 15,503.25 : x
2. Step 2: Convert to fraction form
   10,391.25/15,503.25 = 15,503.25/x
3. Step 3: Cross multiply
   10,391.25x = 15,503.25 × 15,503.25
4. Step 4: Simplify right side
   10,391.25x = 240,350,760.56
5. Step 5: Solve for x
   x = 240,350,760.56/10,391.25
6. Step 6: Final answer
   x = 23,130.11