Finding the Third Proportional to 339,902 and 746,710

Step by Step Solution

1. Step 1: Write the proportion equation
   339,902 : 746,710 = 746,710 : x
2. Step 2: Convert to fraction form
   339,902/746,710 = 746,710/x
3. Step 3: Cross multiply
   339,902x = 746,710 × 746,710
4. Step 4: Simplify right side
   339,902x = 557,575,824,100
5. Step 5: Solve for x
   x = 557,575,824,100/339,902
6. Step 6: Final answer
   x = 1,640,401.72