Finding the Third Proportional to 622.69 and 945.42

Step by Step Solution

1. Step 1: Write the proportion equation
   622.69 : 945.42 = 945.42 : x
2. Step 2: Convert to fraction form
   622.69/945.42 = 945.42/x
3. Step 3: Cross multiply
   622.69x = 945.42 × 945.42
4. Step 4: Simplify right side
   622.69x = 893,822.52
5. Step 5: Solve for x
   x = 893,822.52/622.69
6. Step 6: Final answer
   x = 1,435.43