Finding the Third Proportional to 12,830 and 28,576

Step by Step Solution

1. Step 1: Write the proportion equation
   12,830 : 28,576 = 28,576 : x
2. Step 2: Convert to fraction form
   12,830/28,576 = 28,576/x
3. Step 3: Cross multiply
   12,830x = 28,576 × 28,576
4. Step 4: Simplify right side
   12,830x = 816,587,776
5. Step 5: Solve for x
   x = 816,587,776/12,830
6. Step 6: Final answer
   x = 63,646.75