Finding the Third Proportional to 709,408 and 1,071,456

Step by Step Solution

1. Step 1: Write the proportion equation
   709,408 : 1,071,456 = 1,071,456 : x
2. Step 2: Convert to fraction form
   709,408/1,071,456 = 1,071,456/x
3. Step 3: Cross multiply
   709,408x = 1,071,456 × 1,071,456
4. Step 4: Simplify right side
   709,408x = 1,148,017,959,936
5. Step 5: Solve for x
   x = 1,148,017,959,936/709,408
6. Step 6: Final answer
   x = 1,618,276.03