Finding the Third Proportional to 335,059 and 518,141.50

Step by Step Solution

1. Step 1: Write the proportion equation
   335,059 : 518,141.50 = 518,141.50 : x
2. Step 2: Convert to fraction form
   335,059/518,141.50 = 518,141.50/x
3. Step 3: Cross multiply
   335,059x = 518,141.50 × 518,141.50
4. Step 4: Simplify right side
   335,059x = 268,470,614,022.25
5. Step 5: Solve for x
   x = 268,470,614,022.25/335,059
6. Step 6: Final answer
   x = 801,263.70