Finding the Third Proportional to 5,113.13 and 10,231.31

Step by Step Solution

1. Step 1: Write the proportion equation
   5,113.13 : 10,231.31 = 10,231.31 : x
2. Step 2: Convert to fraction form
   5,113.13/10,231.31 = 10,231.31/x
3. Step 3: Cross multiply
   5,113.13x = 10,231.31 × 10,231.31
4. Step 4: Simplify right side
   5,113.13x = 104,679,755.47
5. Step 5: Solve for x
   x = 104,679,755.47/5,113.13
6. Step 6: Final answer
   x = 20,472.76