Finding the Third Proportional to 8,394.89 and 18,404.40

Step by Step Solution

1. Step 1: Write the proportion equation
   8,394.89 : 18,404.40 = 18,404.40 : x
2. Step 2: Convert to fraction form
   8,394.89/18,404.40 = 18,404.40/x
3. Step 3: Cross multiply
   8,394.89x = 18,404.40 × 18,404.40
4. Step 4: Simplify right side
   8,394.89x = 338,722,025.63
5. Step 5: Solve for x
   x = 338,722,025.63/8,394.89
6. Step 6: Final answer
   x = 40,348.59