Finding the Third Proportional to 10,936.90 and 15,472.27

Step by Step Solution

1. Step 1: Write the proportion equation
   10,936.90 : 15,472.27 = 15,472.27 : x
2. Step 2: Convert to fraction form
   10,936.90/15,472.27 = 15,472.27/x
3. Step 3: Cross multiply
   10,936.90x = 15,472.27 × 15,472.27
4. Step 4: Simplify right side
   10,936.90x = 239,391,003.57
5. Step 5: Solve for x
   x = 239,391,003.57/10,936.90
6. Step 6: Final answer
   x = 21,888.38