Finding the Third Proportional to 9,042.50 and 18,571.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,042.50 : 18,571.50 = 18,571.50 : x
2. Step 2: Convert to fraction form
   9,042.50/18,571.50 = 18,571.50/x
3. Step 3: Cross multiply
   9,042.50x = 18,571.50 × 18,571.50
4. Step 4: Simplify right side
   9,042.50x = 344,900,612.25
5. Step 5: Solve for x
   x = 344,900,612.25/9,042.50
6. Step 6: Final answer
   x = 38,142.17