Finding the Third Proportional to 1,242.56 and 1,863.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,242.56 : 1,863.94 = 1,863.94 : x
2. Step 2: Convert to fraction form
   1,242.56/1,863.94 = 1,863.94/x
3. Step 3: Cross multiply
   1,242.56x = 1,863.94 × 1,863.94
4. Step 4: Simplify right side
   1,242.56x = 3,474,263.00
5. Step 5: Solve for x
   x = 3,474,263.00/1,242.56
6. Step 6: Final answer
   x = 2,796.05