Finding the Third Proportional to 335,286 and 718,513.88

Step by Step Solution

1. Step 1: Write the proportion equation
   335,286 : 718,513.88 = 718,513.88 : x
2. Step 2: Convert to fraction form
   335,286/718,513.88 = 718,513.88/x
3. Step 3: Cross multiply
   335,286x = 718,513.88 × 718,513.88
4. Step 4: Simplify right side
   335,286x = 516,262,188,567.52
5. Step 5: Solve for x
   x = 516,262,188,567.52/335,286
6. Step 6: Final answer
   x = 1,539,766.61