Finding the Third Proportional to 2,983.50 and 7,209

Step by Step Solution

1. Step 1: Write the proportion equation
   2,983.50 : 7,209 = 7,209 : x
2. Step 2: Convert to fraction form
   2,983.50/7,209 = 7,209/x
3. Step 3: Cross multiply
   2,983.50x = 7,209 × 7,209
4. Step 4: Simplify right side
   2,983.50x = 51,969,681
5. Step 5: Solve for x
   x = 51,969,681/2,983.50
6. Step 6: Final answer
   x = 17,419.03