Finding the Third Proportional to 1,355,686 and 2,100,477

Step by Step Solution

1. Step 1: Write the proportion equation
   1,355,686 : 2,100,477 = 2,100,477 : x
2. Step 2: Convert to fraction form
   1,355,686/2,100,477 = 2,100,477/x
3. Step 3: Cross multiply
   1,355,686x = 2,100,477 × 2,100,477
4. Step 4: Simplify right side
   1,355,686x = 4,412,003,627,529
5. Step 5: Solve for x
   x = 4,412,003,627,529/1,355,686
6. Step 6: Final answer
   x = 3,254,443.60