Finding the Third Proportional to 667.93 and 1,036.78

Step by Step Solution

1. Step 1: Write the proportion equation
   667.93 : 1,036.78 = 1,036.78 : x
2. Step 2: Convert to fraction form
   667.93/1,036.78 = 1,036.78/x
3. Step 3: Cross multiply
   667.93x = 1,036.78 × 1,036.78
4. Step 4: Simplify right side
   667.93x = 1,074,921.44
5. Step 5: Solve for x
   x = 1,074,921.44/667.93
6. Step 6: Final answer
   x = 1,609.32