Finding the Third Proportional to 31,350 and 67,074

Step by Step Solution

1. Step 1: Write the proportion equation
   31,350 : 67,074 = 67,074 : x
2. Step 2: Convert to fraction form
   31,350/67,074 = 67,074/x
3. Step 3: Cross multiply
   31,350x = 67,074 × 67,074
4. Step 4: Simplify right side
   31,350x = 4,498,921,476
5. Step 5: Solve for x
   x = 4,498,921,476/31,350
6. Step 6: Final answer
   x = 143,506.27