Finding the Third Proportional to 42,776 and 62,876

Step by Step Solution

1. Step 1: Write the proportion equation
   42,776 : 62,876 = 62,876 : x
2. Step 2: Convert to fraction form
   42,776/62,876 = 62,876/x
3. Step 3: Cross multiply
   42,776x = 62,876 × 62,876
4. Step 4: Simplify right side
   42,776x = 3,953,391,376
5. Step 5: Solve for x
   x = 3,953,391,376/42,776
6. Step 6: Final answer
   x = 92,420.78