Finding the Third Proportional to 1,247.81 and 1,956.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,247.81 : 1,956.56 = 1,956.56 : x
2. Step 2: Convert to fraction form
   1,247.81/1,956.56 = 1,956.56/x
3. Step 3: Cross multiply
   1,247.81x = 1,956.56 × 1,956.56
4. Step 4: Simplify right side
   1,247.81x = 3,828,136.82
5. Step 5: Solve for x
   x = 3,828,136.82/1,247.81
6. Step 6: Final answer
   x = 3,067.88