Finding the Third Proportional to 694,406 and 1,521,760

Step by Step Solution

1. Step 1: Write the proportion equation
   694,406 : 1,521,760 = 1,521,760 : x
2. Step 2: Convert to fraction form
   694,406/1,521,760 = 1,521,760/x
3. Step 3: Cross multiply
   694,406x = 1,521,760 × 1,521,760
4. Step 4: Simplify right side
   694,406x = 2,315,753,497,600
5. Step 5: Solve for x
   x = 2,315,753,497,600/694,406
6. Step 6: Final answer
   x = 3,334,869.65