Finding the Third Proportional to 8,234.63 and 18,109.31

Step by Step Solution

1. Step 1: Write the proportion equation
   8,234.63 : 18,109.31 = 18,109.31 : x
2. Step 2: Convert to fraction form
   8,234.63/18,109.31 = 18,109.31/x
3. Step 3: Cross multiply
   8,234.63x = 18,109.31 × 18,109.31
4. Step 4: Simplify right side
   8,234.63x = 327,947,199.22
5. Step 5: Solve for x
   x = 327,947,199.22/8,234.63
6. Step 6: Final answer
   x = 39,825.40