Finding the Third Proportional to 3,939.38 and 8,075.63

Step by Step Solution

1. Step 1: Write the proportion equation
   3,939.38 : 8,075.63 = 8,075.63 : x
2. Step 2: Convert to fraction form
   3,939.38/8,075.63 = 8,075.63/x
3. Step 3: Cross multiply
   3,939.38x = 8,075.63 × 8,075.63
4. Step 4: Simplify right side
   3,939.38x = 65,215,719.14
5. Step 5: Solve for x
   x = 65,215,719.14/3,939.38
6. Step 6: Final answer
   x = 16,554.84