Finding the Third Proportional to 260,349.75 and 570,636

Step by Step Solution

1. Step 1: Write the proportion equation
   260,349.75 : 570,636 = 570,636 : x
2. Step 2: Convert to fraction form
   260,349.75/570,636 = 570,636/x
3. Step 3: Cross multiply
   260,349.75x = 570,636 × 570,636
4. Step 4: Simplify right side
   260,349.75x = 325,625,444,496
5. Step 5: Solve for x
   x = 325,625,444,496/260,349.75
6. Step 6: Final answer
   x = 1,250,723.09