Finding the Third Proportional to 335,043.50 and 518,118

Step by Step Solution

1. Step 1: Write the proportion equation
   335,043.50 : 518,118 = 518,118 : x
2. Step 2: Convert to fraction form
   335,043.50/518,118 = 518,118/x
3. Step 3: Cross multiply
   335,043.50x = 518,118 × 518,118
4. Step 4: Simplify right side
   335,043.50x = 268,446,261,924
5. Step 5: Solve for x
   x = 268,446,261,924/335,043.50
6. Step 6: Final answer
   x = 801,228.09