Finding the Third Proportional to 324,405 and 433,937.25

Step by Step Solution

1. Step 1: Write the proportion equation
   324,405 : 433,937.25 = 433,937.25 : x
2. Step 2: Convert to fraction form
   324,405/433,937.25 = 433,937.25/x
3. Step 3: Cross multiply
   324,405x = 433,937.25 × 433,937.25
4. Step 4: Simplify right side
   324,405x = 188,301,536,937.56
5. Step 5: Solve for x
   x = 188,301,536,937.56/324,405
6. Step 6: Final answer
   x = 580,452.02