Finding the Third Proportional to 1,342.69 and 2,074.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,342.69 : 2,074.78 = 2,074.78 : x
2. Step 2: Convert to fraction form
   1,342.69/2,074.78 = 2,074.78/x
3. Step 3: Cross multiply
   1,342.69x = 2,074.78 × 2,074.78
4. Step 4: Simplify right side
   1,342.69x = 4,304,717.24
5. Step 5: Solve for x
   x = 4,304,717.24/1,342.69
6. Step 6: Final answer
   x = 3,206.05