Finding the Third Proportional to 3,936 and 5,556

Step by Step Solution

1. Step 1: Write the proportion equation
   3,936 : 5,556 = 5,556 : x
2. Step 2: Convert to fraction form
   3,936/5,556 = 5,556/x
3. Step 3: Cross multiply
   3,936x = 5,556 × 5,556
4. Step 4: Simplify right side
   3,936x = 30,869,136
5. Step 5: Solve for x
   x = 30,869,136/3,936
6. Step 6: Final answer
   x = 7,842.77