Finding the Third Proportional to 333,426 and 718,980

Step by Step Solution

1. Step 1: Write the proportion equation
   333,426 : 718,980 = 718,980 : x
2. Step 2: Convert to fraction form
   333,426/718,980 = 718,980/x
3. Step 3: Cross multiply
   333,426x = 718,980 × 718,980
4. Step 4: Simplify right side
   333,426x = 516,932,240,400
5. Step 5: Solve for x
   x = 516,932,240,400/333,426
6. Step 6: Final answer
   x = 1,550,365.72