Finding the Third Proportional to 776,378 and 1,185,303

Step by Step Solution

1. Step 1: Write the proportion equation
   776,378 : 1,185,303 = 1,185,303 : x
2. Step 2: Convert to fraction form
   776,378/1,185,303 = 1,185,303/x
3. Step 3: Cross multiply
   776,378x = 1,185,303 × 1,185,303
4. Step 4: Simplify right side
   776,378x = 1,404,943,201,809
5. Step 5: Solve for x
   x = 1,404,943,201,809/776,378
6. Step 6: Final answer
   x = 1,809,612.33