Finding the Third Proportional to 2,431.31 and 5,335.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,431.31 : 5,335.31 = 5,335.31 : x
2. Step 2: Convert to fraction form
   2,431.31/5,335.31 = 5,335.31/x
3. Step 3: Cross multiply
   2,431.31x = 5,335.31 × 5,335.31
4. Step 4: Simplify right side
   2,431.31x = 28,465,559.47
5. Step 5: Solve for x
   x = 28,465,559.47/2,431.31
6. Step 6: Final answer
   x = 11,707.90