Finding the Third Proportional to 260,406 and 570,666

Step by Step Solution

1. Step 1: Write the proportion equation
   260,406 : 570,666 = 570,666 : x
2. Step 2: Convert to fraction form
   260,406/570,666 = 570,666/x
3. Step 3: Cross multiply
   260,406x = 570,666 × 570,666
4. Step 4: Simplify right side
   260,406x = 325,659,683,556
5. Step 5: Solve for x
   x = 325,659,683,556/260,406
6. Step 6: Final answer
   x = 1,250,584.41