Finding the Third Proportional to 10,231.31 and 15,360.89

Step by Step Solution

1. Step 1: Write the proportion equation
   10,231.31 : 15,360.89 = 15,360.89 : x
2. Step 2: Convert to fraction form
   10,231.31/15,360.89 = 15,360.89/x
3. Step 3: Cross multiply
   10,231.31x = 15,360.89 × 15,360.89
4. Step 4: Simplify right side
   10,231.31x = 235,956,960.79
5. Step 5: Solve for x
   x = 235,956,960.79/10,231.31
6. Step 6: Final answer
   x = 23,062.24