Finding the Third Proportional to 763,378 and 1,036,746

Step by Step Solution

1. Step 1: Write the proportion equation
   763,378 : 1,036,746 = 1,036,746 : x
2. Step 2: Convert to fraction form
   763,378/1,036,746 = 1,036,746/x
3. Step 3: Cross multiply
   763,378x = 1,036,746 × 1,036,746
4. Step 4: Simplify right side
   763,378x = 1,074,842,268,516
5. Step 5: Solve for x
   x = 1,074,842,268,516/763,378
6. Step 6: Final answer
   x = 1,408,007.92