Finding the Third Proportional to 12,472 and 28,876

Step by Step Solution

1. Step 1: Write the proportion equation
   12,472 : 28,876 = 28,876 : x
2. Step 2: Convert to fraction form
   12,472/28,876 = 28,876/x
3. Step 3: Cross multiply
   12,472x = 28,876 × 28,876
4. Step 4: Simplify right side
   12,472x = 833,823,376
5. Step 5: Solve for x
   x = 833,823,376/12,472
6. Step 6: Final answer
   x = 66,855.63