Finding the Third Proportional to 43.88 and 70.31

Step by Step Solution

1. Step 1: Write the proportion equation
   43.88 : 70.31 = 70.31 : x
2. Step 2: Convert to fraction form
   43.88/70.31 = 70.31/x
3. Step 3: Cross multiply
   43.88x = 70.31 × 70.31
4. Step 4: Simplify right side
   43.88x = 4,943.85
5. Step 5: Solve for x
   x = 4,943.85/43.88
6. Step 6: Final answer
   x = 112.68