Finding the Third Proportional to 954.88 and 1,288.31

Step by Step Solution

1. Step 1: Write the proportion equation
   954.88 : 1,288.31 = 1,288.31 : x
2. Step 2: Convert to fraction form
   954.88/1,288.31 = 1,288.31/x
3. Step 3: Cross multiply
   954.88x = 1,288.31 × 1,288.31
4. Step 4: Simplify right side
   954.88x = 1,659,749.10
5. Step 5: Solve for x
   x = 1,659,749.10/954.88
6. Step 6: Final answer
   x = 1,738.18