Finding the Third Proportional to 568,435.50 and 858,541.50

Step by Step Solution

1. Step 1: Write the proportion equation
   568,435.50 : 858,541.50 = 858,541.50 : x
2. Step 2: Convert to fraction form
   568,435.50/858,541.50 = 858,541.50/x
3. Step 3: Cross multiply
   568,435.50x = 858,541.50 × 858,541.50
4. Step 4: Simplify right side
   568,435.50x = 737,093,507,222.25
5. Step 5: Solve for x
   x = 737,093,507,222.25/568,435.50
6. Step 6: Final answer
   x = 1,296,705.62