Finding the Third Proportional to 763,340 and 1,036,689

Step by Step Solution

1. Step 1: Write the proportion equation
   763,340 : 1,036,689 = 1,036,689 : x
2. Step 2: Convert to fraction form
   763,340/1,036,689 = 1,036,689/x
3. Step 3: Cross multiply
   763,340x = 1,036,689 × 1,036,689
4. Step 4: Simplify right side
   763,340x = 1,074,724,082,721
5. Step 5: Solve for x
   x = 1,074,724,082,721/763,340
6. Step 6: Final answer
   x = 1,407,923.18