Finding the Third Proportional to 3,443.34 and 8,278.03

Step by Step Solution

1. Step 1: Write the proportion equation
   3,443.34 : 8,278.03 = 8,278.03 : x
2. Step 2: Convert to fraction form
   3,443.34/8,278.03 = 8,278.03/x
3. Step 3: Cross multiply
   3,443.34x = 8,278.03 × 8,278.03
4. Step 4: Simplify right side
   3,443.34x = 68,525,801.38
5. Step 5: Solve for x
   x = 68,525,801.38/3,443.34
6. Step 6: Final answer
   x = 19,900.95