Finding the Third Proportional to 10,744.50 and 15,130.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,744.50 : 15,130.50 = 15,130.50 : x
2. Step 2: Convert to fraction form
   10,744.50/15,130.50 = 15,130.50/x
3. Step 3: Cross multiply
   10,744.50x = 15,130.50 × 15,130.50
4. Step 4: Simplify right side
   10,744.50x = 228,932,030.25
5. Step 5: Solve for x
   x = 228,932,030.25/10,744.50
6. Step 6: Final answer
   x = 21,306.90