Finding the Third Proportional to 7,018.50 and 10,554

Step by Step Solution

1. Step 1: Write the proportion equation
   7,018.50 : 10,554 = 10,554 : x
2. Step 2: Convert to fraction form
   7,018.50/10,554 = 10,554/x
3. Step 3: Cross multiply
   7,018.50x = 10,554 × 10,554
4. Step 4: Simplify right side
   7,018.50x = 111,386,916
5. Step 5: Solve for x
   x = 111,386,916/7,018.50
6. Step 6: Final answer
   x = 15,870.47