Finding the Third Proportional to 12,780 and 28,536

Step by Step Solution

1. Step 1: Write the proportion equation
   12,780 : 28,536 = 28,536 : x
2. Step 2: Convert to fraction form
   12,780/28,536 = 28,536/x
3. Step 3: Cross multiply
   12,780x = 28,536 × 28,536
4. Step 4: Simplify right side
   12,780x = 814,303,296
5. Step 5: Solve for x
   x = 814,303,296/12,780
6. Step 6: Final answer
   x = 63,717.00