Finding the Third Proportional to 18,404.72 and 40,305.09

Step by Step Solution

1. Step 1: Write the proportion equation
   18,404.72 : 40,305.09 = 40,305.09 : x
2. Step 2: Convert to fraction form
   18,404.72/40,305.09 = 40,305.09/x
3. Step 3: Cross multiply
   18,404.72x = 40,305.09 × 40,305.09
4. Step 4: Simplify right side
   18,404.72x = 1,624,500,582.20
5. Step 5: Solve for x
   x = 1,624,500,582.20/18,404.72
6. Step 6: Final answer
   x = 88,265.44