Finding the Third Proportional to 435,345.50 and 659,589.25

Step by Step Solution

1. Step 1: Write the proportion equation
   435,345.50 : 659,589.25 = 659,589.25 : x
2. Step 2: Convert to fraction form
   435,345.50/659,589.25 = 659,589.25/x
3. Step 3: Cross multiply
   435,345.50x = 659,589.25 × 659,589.25
4. Step 4: Simplify right side
   435,345.50x = 435,057,978,715.56
5. Step 5: Solve for x
   x = 435,057,978,715.56/435,345.50
6. Step 6: Final answer
   x = 999,339.56