Finding the Third Proportional to 763,389 and 1,036,766

Step by Step Solution

1. Step 1: Write the proportion equation
   763,389 : 1,036,766 = 1,036,766 : x
2. Step 2: Convert to fraction form
   763,389/1,036,766 = 1,036,766/x
3. Step 3: Cross multiply
   763,389x = 1,036,766 × 1,036,766
4. Step 4: Simplify right side
   763,389x = 1,074,883,738,756
5. Step 5: Solve for x
   x = 1,074,883,738,756/763,389
6. Step 6: Final answer
   x = 1,408,041.95