Finding the Third Proportional to 2,603.63 and 3,908.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,603.63 : 3,908.81 = 3,908.81 : x
2. Step 2: Convert to fraction form
   2,603.63/3,908.81 = 3,908.81/x
3. Step 3: Cross multiply
   2,603.63x = 3,908.81 × 3,908.81
4. Step 4: Simplify right side
   2,603.63x = 15,278,815.16
5. Step 5: Solve for x
   x = 15,278,815.16/2,603.63
6. Step 6: Final answer
   x = 5,868.29