Finding the Third Proportional to 2,613 and 5,712

Step by Step Solution

1. Step 1: Write the proportion equation
   2,613 : 5,712 = 5,712 : x
2. Step 2: Convert to fraction form
   2,613/5,712 = 5,712/x
3. Step 3: Cross multiply
   2,613x = 5,712 × 5,712
4. Step 4: Simplify right side
   2,613x = 32,626,944
5. Step 5: Solve for x
   x = 32,626,944/2,613
6. Step 6: Final answer
   x = 12,486.39