Finding the Third Proportional to 1,815.94 and 2,716.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,815.94 : 2,716.78 = 2,716.78 : x
2. Step 2: Convert to fraction form
   1,815.94/2,716.78 = 2,716.78/x
3. Step 3: Cross multiply
   1,815.94x = 2,716.78 × 2,716.78
4. Step 4: Simplify right side
   1,815.94x = 7,380,900.36
5. Step 5: Solve for x
   x = 7,380,900.36/1,815.94
6. Step 6: Final answer
   x = 4,064.51