Finding the Third Proportional to 31,928 and 50,531

Step by Step Solution

1. Step 1: Write the proportion equation
   31,928 : 50,531 = 50,531 : x
2. Step 2: Convert to fraction form
   31,928/50,531 = 50,531/x
3. Step 3: Cross multiply
   31,928x = 50,531 × 50,531
4. Step 4: Simplify right side
   31,928x = 2,553,381,961
5. Step 5: Solve for x
   x = 2,553,381,961/31,928
6. Step 6: Final answer
   x = 79,973.13