Finding the Third Proportional to 445,702 and 668,662

Step by Step Solution

1. Step 1: Write the proportion equation
   445,702 : 668,662 = 668,662 : x
2. Step 2: Convert to fraction form
   445,702/668,662 = 668,662/x
3. Step 3: Cross multiply
   445,702x = 668,662 × 668,662
4. Step 4: Simplify right side
   445,702x = 447,108,870,244
5. Step 5: Solve for x
   x = 447,108,870,244/445,702
6. Step 6: Final answer
   x = 1,003,156.53