Finding the Third Proportional to 322,286 and 709,012

Step by Step Solution

1. Step 1: Write the proportion equation
   322,286 : 709,012 = 709,012 : x
2. Step 2: Convert to fraction form
   322,286/709,012 = 709,012/x
3. Step 3: Cross multiply
   322,286x = 709,012 × 709,012
4. Step 4: Simplify right side
   322,286x = 502,698,016,144
5. Step 5: Solve for x
   x = 502,698,016,144/322,286
6. Step 6: Final answer
   x = 1,559,788.56