Finding the Third Proportional to 333,429 and 718,986

Step by Step Solution

1. Step 1: Write the proportion equation
   333,429 : 718,986 = 718,986 : x
2. Step 2: Convert to fraction form
   333,429/718,986 = 718,986/x
3. Step 3: Cross multiply
   333,429x = 718,986 × 718,986
4. Step 4: Simplify right side
   333,429x = 516,940,868,196
5. Step 5: Solve for x
   x = 516,940,868,196/333,429
6. Step 6: Final answer
   x = 1,550,377.65