Finding the Third Proportional to 772,728 and 1,682,740

Step by Step Solution

1. Step 1: Write the proportion equation
   772,728 : 1,682,740 = 1,682,740 : x
2. Step 2: Convert to fraction form
   772,728/1,682,740 = 1,682,740/x
3. Step 3: Cross multiply
   772,728x = 1,682,740 × 1,682,740
4. Step 4: Simplify right side
   772,728x = 2,831,613,907,600
5. Step 5: Solve for x
   x = 2,831,613,907,600/772,728
6. Step 6: Final answer
   x = 3,664,438.08