Finding the Third Proportional to 18,436 and 39,012

Step by Step Solution

1. Step 1: Write the proportion equation
   18,436 : 39,012 = 39,012 : x
2. Step 2: Convert to fraction form
   18,436/39,012 = 39,012/x
3. Step 3: Cross multiply
   18,436x = 39,012 × 39,012
4. Step 4: Simplify right side
   18,436x = 1,521,936,144
5. Step 5: Solve for x
   x = 1,521,936,144/18,436
6. Step 6: Final answer
   x = 82,552.41