Finding the Third Proportional to 18,579.16 and 27,874.55

Step by Step Solution

1. Step 1: Write the proportion equation
   18,579.16 : 27,874.55 = 27,874.55 : x
2. Step 2: Convert to fraction form
   18,579.16/27,874.55 = 27,874.55/x
3. Step 3: Cross multiply
   18,579.16x = 27,874.55 × 27,874.55
4. Step 4: Simplify right side
   18,579.16x = 776,990,363.49
5. Step 5: Solve for x
   x = 776,990,363.49/18,579.16
6. Step 6: Final answer
   x = 41,820.52