Finding the Third Proportional to 1,368.56 and 2,087.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,368.56 : 2,087.16 = 2,087.16 : x
2. Step 2: Convert to fraction form
   1,368.56/2,087.16 = 2,087.16/x
3. Step 3: Cross multiply
   1,368.56x = 2,087.16 × 2,087.16
4. Step 4: Simplify right side
   1,368.56x = 4,356,221.21
5. Step 5: Solve for x
   x = 4,356,221.21/1,368.56
6. Step 6: Final answer
   x = 3,183.06