Finding the Third Proportional to 43,787 and 67,931

Step by Step Solution

1. Step 1: Write the proportion equation
   43,787 : 67,931 = 67,931 : x
2. Step 2: Convert to fraction form
   43,787/67,931 = 67,931/x
3. Step 3: Cross multiply
   43,787x = 67,931 × 67,931
4. Step 4: Simplify right side
   43,787x = 4,614,620,761
5. Step 5: Solve for x
   x = 4,614,620,761/43,787
6. Step 6: Final answer
   x = 105,387.92