Finding the Third Proportional to 713,443 and 978,304

Step by Step Solution

1. Step 1: Write the proportion equation
   713,443 : 978,304 = 978,304 : x
2. Step 2: Convert to fraction form
   713,443/978,304 = 978,304/x
3. Step 3: Cross multiply
   713,443x = 978,304 × 978,304
4. Step 4: Simplify right side
   713,443x = 957,078,716,416
5. Step 5: Solve for x
   x = 957,078,716,416/713,443
6. Step 6: Final answer
   x = 1,341,492.90