Finding the Third Proportional to 605,769 and 1,321,556

Step by Step Solution

1. Step 1: Write the proportion equation
   605,769 : 1,321,556 = 1,321,556 : x
2. Step 2: Convert to fraction form
   605,769/1,321,556 = 1,321,556/x
3. Step 3: Cross multiply
   605,769x = 1,321,556 × 1,321,556
4. Step 4: Simplify right side
   605,769x = 1,746,510,261,136
5. Step 5: Solve for x
   x = 1,746,510,261,136/605,769
6. Step 6: Final answer
   x = 2,883,129.15