Finding the Third Proportional to 457,942 and 673,662

Step by Step Solution

1. Step 1: Write the proportion equation
   457,942 : 673,662 = 673,662 : x
2. Step 2: Convert to fraction form
   457,942/673,662 = 673,662/x
3. Step 3: Cross multiply
   457,942x = 673,662 × 673,662
4. Step 4: Simplify right side
   457,942x = 453,820,490,244
5. Step 5: Solve for x
   x = 453,820,490,244/457,942
6. Step 6: Final answer
   x = 990,999.93