Finding the Third Proportional to 12,578 and 27,556

Step by Step Solution

1. Step 1: Write the proportion equation
   12,578 : 27,556 = 27,556 : x
2. Step 2: Convert to fraction form
   12,578/27,556 = 27,556/x
3. Step 3: Cross multiply
   12,578x = 27,556 × 27,556
4. Step 4: Simplify right side
   12,578x = 759,333,136
5. Step 5: Solve for x
   x = 759,333,136/12,578
6. Step 6: Final answer
   x = 60,369.94