Finding the Third Proportional to 31.06 and 48.31

Step by Step Solution

1. Step 1: Write the proportion equation
   31.06 : 48.31 = 48.31 : x
2. Step 2: Convert to fraction form
   31.06/48.31 = 48.31/x
3. Step 3: Cross multiply
   31.06x = 48.31 × 48.31
4. Step 4: Simplify right side
   31.06x = 2,334.10
5. Step 5: Solve for x
   x = 2,334.10/31.06
6. Step 6: Final answer
   x = 75.14