Finding the Third Proportional to 50,815 and 67,885

Step by Step Solution

1. Step 1: Write the proportion equation
   50,815 : 67,885 = 67,885 : x
2. Step 2: Convert to fraction form
   50,815/67,885 = 67,885/x
3. Step 3: Cross multiply
   50,815x = 67,885 × 67,885
4. Step 4: Simplify right side
   50,815x = 4,608,373,225
5. Step 5: Solve for x
   x = 4,608,373,225/50,815
6. Step 6: Final answer
   x = 90,689.23