Finding the Third Proportional to 2,019.50 and 4,357

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019.50 : 4,357 = 4,357 : x
2. Step 2: Convert to fraction form
   2,019.50/4,357 = 4,357/x
3. Step 3: Cross multiply
   2,019.50x = 4,357 × 4,357
4. Step 4: Simplify right side
   2,019.50x = 18,983,449
5. Step 5: Solve for x
   x = 18,983,449/2,019.50
6. Step 6: Final answer
   x = 9,400.07