Finding the Third Proportional to 713,543 and 978,469

Step by Step Solution

1. Step 1: Write the proportion equation
   713,543 : 978,469 = 978,469 : x
2. Step 2: Convert to fraction form
   713,543/978,469 = 978,469/x
3. Step 3: Cross multiply
   713,543x = 978,469 × 978,469
4. Step 4: Simplify right side
   713,543x = 957,401,583,961
5. Step 5: Solve for x
   x = 957,401,583,961/713,543
6. Step 6: Final answer
   x = 1,341,757.38