Finding the Third Proportional to 667.69 and 996.05

Step by Step Solution

1. Step 1: Write the proportion equation
   667.69 : 996.05 = 996.05 : x
2. Step 2: Convert to fraction form
   667.69/996.05 = 996.05/x
3. Step 3: Cross multiply
   667.69x = 996.05 × 996.05
4. Step 4: Simplify right side
   667.69x = 992,109.38
5. Step 5: Solve for x
   x = 992,109.38/667.69
6. Step 6: Final answer
   x = 1,485.89