Finding the Third Proportional to 620,907 and 1,358,049

Step by Step Solution

1. Step 1: Write the proportion equation
   620,907 : 1,358,049 = 1,358,049 : x
2. Step 2: Convert to fraction form
   620,907/1,358,049 = 1,358,049/x
3. Step 3: Cross multiply
   620,907x = 1,358,049 × 1,358,049
4. Step 4: Simplify right side
   620,907x = 1,844,297,086,401
5. Step 5: Solve for x
   x = 1,844,297,086,401/620,907
6. Step 6: Final answer
   x = 2,970,327.42