Finding the Third Proportional to 31,942.75 and 67,982.75

Step by Step Solution

1. Step 1: Write the proportion equation
   31,942.75 : 67,982.75 = 67,982.75 : x
2. Step 2: Convert to fraction form
   31,942.75/67,982.75 = 67,982.75/x
3. Step 3: Cross multiply
   31,942.75x = 67,982.75 × 67,982.75
4. Step 4: Simplify right side
   31,942.75x = 4,621,654,297.56
5. Step 5: Solve for x
   x = 4,621,654,297.56/31,942.75
6. Step 6: Final answer
   x = 144,685.55