Finding the Third Proportional to 774,637 and 1,677,912

Step by Step Solution

1. Step 1: Write the proportion equation
   774,637 : 1,677,912 = 1,677,912 : x
2. Step 2: Convert to fraction form
   774,637/1,677,912 = 1,677,912/x
3. Step 3: Cross multiply
   774,637x = 1,677,912 × 1,677,912
4. Step 4: Simplify right side
   774,637x = 2,815,388,679,744
5. Step 5: Solve for x
   x = 2,815,388,679,744/774,637
6. Step 6: Final answer
   x = 3,634,461.92