Finding the Third Proportional to 1,434.38 and 3,039.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,434.38 : 3,039.61 = 3,039.61 : x
2. Step 2: Convert to fraction form
   1,434.38/3,039.61 = 3,039.61/x
3. Step 3: Cross multiply
   1,434.38x = 3,039.61 × 3,039.61
4. Step 4: Simplify right side
   1,434.38x = 9,239,225.15
5. Step 5: Solve for x
   x = 9,239,225.15/1,434.38
6. Step 6: Final answer
   x = 6,441.29