Finding the Third Proportional to 366,768 and 557,644.50

Step by Step Solution

1. Step 1: Write the proportion equation
   366,768 : 557,644.50 = 557,644.50 : x
2. Step 2: Convert to fraction form
   366,768/557,644.50 = 557,644.50/x
3. Step 3: Cross multiply
   366,768x = 557,644.50 × 557,644.50
4. Step 4: Simplify right side
   366,768x = 310,967,388,380.25
5. Step 5: Solve for x
   x = 310,967,388,380.25/366,768
6. Step 6: Final answer
   x = 847,858.56