Finding the Third Proportional to 1,396.78 and 3,043.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,396.78 : 3,043.43 = 3,043.43 : x
2. Step 2: Convert to fraction form
   1,396.78/3,043.43 = 3,043.43/x
3. Step 3: Cross multiply
   1,396.78x = 3,043.43 × 3,043.43
4. Step 4: Simplify right side
   1,396.78x = 9,262,482.10
5. Step 5: Solve for x
   x = 9,262,482.10/1,396.78
6. Step 6: Final answer
   x = 6,631.33