Finding the Third Proportional to 459,239 and 724,078.50

Step by Step Solution

1. Step 1: Write the proportion equation
   459,239 : 724,078.50 = 724,078.50 : x
2. Step 2: Convert to fraction form
   459,239/724,078.50 = 724,078.50/x
3. Step 3: Cross multiply
   459,239x = 724,078.50 × 724,078.50
4. Step 4: Simplify right side
   459,239x = 524,289,674,162.25
5. Step 5: Solve for x
   x = 524,289,674,162.25/459,239
6. Step 6: Final answer
   x = 1,141,648.85