Finding the Third Proportional to 713,476 and 978,357

Step by Step Solution

1. Step 1: Write the proportion equation
   713,476 : 978,357 = 978,357 : x
2. Step 2: Convert to fraction form
   713,476/978,357 = 978,357/x
3. Step 3: Cross multiply
   713,476x = 978,357 × 978,357
4. Step 4: Simplify right side
   713,476x = 957,182,419,449
5. Step 5: Solve for x
   x = 957,182,419,449/713,476
6. Step 6: Final answer
   x = 1,341,576.20