Finding the Third Proportional to 774,116 and 1,138,398

Step by Step Solution

1. Step 1: Write the proportion equation
   774,116 : 1,138,398 = 1,138,398 : x
2. Step 2: Convert to fraction form
   774,116/1,138,398 = 1,138,398/x
3. Step 3: Cross multiply
   774,116x = 1,138,398 × 1,138,398
4. Step 4: Simplify right side
   774,116x = 1,295,950,006,404
5. Step 5: Solve for x
   x = 1,295,950,006,404/774,116
6. Step 6: Final answer
   x = 1,674,103.11