Finding the Third Proportional to 43.31 and 65.39

Step by Step Solution

1. Step 1: Write the proportion equation
   43.31 : 65.39 = 65.39 : x
2. Step 2: Convert to fraction form
   43.31/65.39 = 65.39/x
3. Step 3: Cross multiply
   43.31x = 65.39 × 65.39
4. Step 4: Simplify right side
   43.31x = 4,275.93
5. Step 5: Solve for x
   x = 4,275.93/43.31
6. Step 6: Final answer
   x = 98.72