Finding the Third Proportional to 878,406 and 1,917,444

Step by Step Solution

1. Step 1: Write the proportion equation
   878,406 : 1,917,444 = 1,917,444 : x
2. Step 2: Convert to fraction form
   878,406/1,917,444 = 1,917,444/x
3. Step 3: Cross multiply
   878,406x = 1,917,444 × 1,917,444
4. Step 4: Simplify right side
   878,406x = 3,676,591,493,136
5. Step 5: Solve for x
   x = 3,676,591,493,136/878,406
6. Step 6: Final answer
   x = 4,185,526.39