Finding the Third Proportional to 31,751 and 67,876

Step by Step Solution

1. Step 1: Write the proportion equation
   31,751 : 67,876 = 67,876 : x
2. Step 2: Convert to fraction form
   31,751/67,876 = 67,876/x
3. Step 3: Cross multiply
   31,751x = 67,876 × 67,876
4. Step 4: Simplify right side
   31,751x = 4,607,151,376
5. Step 5: Solve for x
   x = 4,607,151,376/31,751
6. Step 6: Final answer
   x = 145,102.56