Finding the Third Proportional to 1,984.50 and 4,223.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,984.50 : 4,223.39 = 4,223.39 : x
2. Step 2: Convert to fraction form
   1,984.50/4,223.39 = 4,223.39/x
3. Step 3: Cross multiply
   1,984.50x = 4,223.39 × 4,223.39
4. Step 4: Simplify right side
   1,984.50x = 17,837,028.37
5. Step 5: Solve for x
   x = 17,837,028.37/1,984.50
6. Step 6: Final answer
   x = 8,988.17