Finding the Third Proportional to 12,887 and 28,231

Step by Step Solution

1. Step 1: Write the proportion equation
   12,887 : 28,231 = 28,231 : x
2. Step 2: Convert to fraction form
   12,887/28,231 = 28,231/x
3. Step 3: Cross multiply
   12,887x = 28,231 × 28,231
4. Step 4: Simplify right side
   12,887x = 796,989,361
5. Step 5: Solve for x
   x = 796,989,361/12,887
6. Step 6: Final answer
   x = 61,844.44