Finding the Third Proportional to 7,891.50 and 18,270.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,891.50 : 18,270.50 = 18,270.50 : x
2. Step 2: Convert to fraction form
   7,891.50/18,270.50 = 18,270.50/x
3. Step 3: Cross multiply
   7,891.50x = 18,270.50 × 18,270.50
4. Step 4: Simplify right side
   7,891.50x = 333,811,170.25
5. Step 5: Solve for x
   x = 333,811,170.25/7,891.50
6. Step 6: Final answer
   x = 42,300.09