Finding the Third Proportional to 2,642 and 5,690

Step by Step Solution

1. Step 1: Write the proportion equation
   2,642 : 5,690 = 5,690 : x
2. Step 2: Convert to fraction form
   2,642/5,690 = 5,690/x
3. Step 3: Cross multiply
   2,642x = 5,690 × 5,690
4. Step 4: Simplify right side
   2,642x = 32,376,100
5. Step 5: Solve for x
   x = 32,376,100/2,642
6. Step 6: Final answer
   x = 12,254.39