Finding the Third Proportional to 713,542 and 978,459

Step by Step Solution

1. Step 1: Write the proportion equation
   713,542 : 978,459 = 978,459 : x
2. Step 2: Convert to fraction form
   713,542/978,459 = 978,459/x
3. Step 3: Cross multiply
   713,542x = 978,459 × 978,459
4. Step 4: Simplify right side
   713,542x = 957,382,014,681
5. Step 5: Solve for x
   x = 957,382,014,681/713,542
6. Step 6: Final answer
   x = 1,341,731.83