Finding the Third Proportional to 31,687 and 50,170.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,687 : 50,170.50 = 50,170.50 : x
2. Step 2: Convert to fraction form
   31,687/50,170.50 = 50,170.50/x
3. Step 3: Cross multiply
   31,687x = 50,170.50 × 50,170.50
4. Step 4: Simplify right side
   31,687x = 2,517,079,070.25
5. Step 5: Solve for x
   x = 2,517,079,070.25/31,687
6. Step 6: Final answer
   x = 79,435.70