Finding the Third Proportional to 774,288 and 1,619,544

Step by Step Solution

1. Step 1: Write the proportion equation
   774,288 : 1,619,544 = 1,619,544 : x
2. Step 2: Convert to fraction form
   774,288/1,619,544 = 1,619,544/x
3. Step 3: Cross multiply
   774,288x = 1,619,544 × 1,619,544
4. Step 4: Simplify right side
   774,288x = 2,622,922,767,936
5. Step 5: Solve for x
   x = 2,622,922,767,936/774,288
6. Step 6: Final answer
   x = 3,387,528.63