Finding the Third Proportional to 3,718.50 and 9,019.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,718.50 : 9,019.50 = 9,019.50 : x
2. Step 2: Convert to fraction form
   3,718.50/9,019.50 = 9,019.50/x
3. Step 3: Cross multiply
   3,718.50x = 9,019.50 × 9,019.50
4. Step 4: Simplify right side
   3,718.50x = 81,351,380.25
5. Step 5: Solve for x
   x = 81,351,380.25/3,718.50
6. Step 6: Final answer
   x = 21,877.47