Finding the Third Proportional to 31,987 and 50,612

Step by Step Solution

1. Step 1: Write the proportion equation
   31,987 : 50,612 = 50,612 : x
2. Step 2: Convert to fraction form
   31,987/50,612 = 50,612/x
3. Step 3: Cross multiply
   31,987x = 50,612 × 50,612
4. Step 4: Simplify right side
   31,987x = 2,561,574,544
5. Step 5: Solve for x
   x = 2,561,574,544/31,987
6. Step 6: Final answer
   x = 80,081.74