Finding the Third Proportional to 713,558 and 978,466

Step by Step Solution

1. Step 1: Write the proportion equation
   713,558 : 978,466 = 978,466 : x
2. Step 2: Convert to fraction form
   713,558/978,466 = 978,466/x
3. Step 3: Cross multiply
   713,558x = 978,466 × 978,466
4. Step 4: Simplify right side
   713,558x = 957,395,713,156
5. Step 5: Solve for x
   x = 957,395,713,156/713,558
6. Step 6: Final answer
   x = 1,341,720.94