Finding the Third Proportional to 568,757 and 856,740

Step by Step Solution

1. Step 1: Write the proportion equation
   568,757 : 856,740 = 856,740 : x
2. Step 2: Convert to fraction form
   568,757/856,740 = 856,740/x
3. Step 3: Cross multiply
   568,757x = 856,740 × 856,740
4. Step 4: Simplify right side
   568,757x = 734,003,427,600
5. Step 5: Solve for x
   x = 734,003,427,600/568,757
6. Step 6: Final answer
   x = 1,290,539.59