Finding the Third Proportional to 763,415 and 1,036,805

Step by Step Solution

1. Step 1: Write the proportion equation
   763,415 : 1,036,805 = 1,036,805 : x
2. Step 2: Convert to fraction form
   763,415/1,036,805 = 1,036,805/x
3. Step 3: Cross multiply
   763,415x = 1,036,805 × 1,036,805
4. Step 4: Simplify right side
   763,415x = 1,074,964,608,025
5. Step 5: Solve for x
   x = 1,074,964,608,025/763,415
6. Step 6: Final answer
   x = 1,408,099.93