Finding the Third Proportional to 31,505.75 and 68,183.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,505.75 : 68,183.50 = 68,183.50 : x
2. Step 2: Convert to fraction form
   31,505.75/68,183.50 = 68,183.50/x
3. Step 3: Cross multiply
   31,505.75x = 68,183.50 × 68,183.50
4. Step 4: Simplify right side
   31,505.75x = 4,648,989,672.25
5. Step 5: Solve for x
   x = 4,648,989,672.25/31,505.75
6. Step 6: Final answer
   x = 147,560.04