Finding the Third Proportional to 12,790 and 28,555

Step by Step Solution

1. Step 1: Write the proportion equation
   12,790 : 28,555 = 28,555 : x
2. Step 2: Convert to fraction form
   12,790/28,555 = 28,555/x
3. Step 3: Cross multiply
   12,790x = 28,555 × 28,555
4. Step 4: Simplify right side
   12,790x = 815,388,025
5. Step 5: Solve for x
   x = 815,388,025/12,790
6. Step 6: Final answer
   x = 63,752.00