Finding the Third Proportional to 858.94 and 1,839.38

Step by Step Solution

1. Step 1: Write the proportion equation
   858.94 : 1,839.38 = 1,839.38 : x
2. Step 2: Convert to fraction form
   858.94/1,839.38 = 1,839.38/x
3. Step 3: Cross multiply
   858.94x = 1,839.38 × 1,839.38
4. Step 4: Simplify right side
   858.94x = 3,383,300.39
5. Step 5: Solve for x
   x = 3,383,300.39/858.94
6. Step 6: Final answer
   x = 3,938.94