Finding the Third Proportional to 8,583 and 12,570

Step by Step Solution

1. Step 1: Write the proportion equation
   8,583 : 12,570 = 12,570 : x
2. Step 2: Convert to fraction form
   8,583/12,570 = 12,570/x
3. Step 3: Cross multiply
   8,583x = 12,570 × 12,570
4. Step 4: Simplify right side
   8,583x = 158,004,900
5. Step 5: Solve for x
   x = 158,004,900/8,583
6. Step 6: Final answer
   x = 18,409.05