Finding the Third Proportional to 605,290.69 and 904,705.31

Step by Step Solution

1. Step 1: Write the proportion equation
   605,290.69 : 904,705.31 = 904,705.31 : x
2. Step 2: Convert to fraction form
   605,290.69/904,705.31 = 904,705.31/x
3. Step 3: Cross multiply
   605,290.69x = 904,705.31 × 904,705.31
4. Step 4: Simplify right side
   605,290.69x = 818,491,702,465.72
5. Step 5: Solve for x
   x = 818,491,702,465.72/605,290.69
6. Step 6: Final answer
   x = 1,352,229.13