Finding the Third Proportional to 713,560 and 978,495

Step by Step Solution

1. Step 1: Write the proportion equation
   713,560 : 978,495 = 978,495 : x
2. Step 2: Convert to fraction form
   713,560/978,495 = 978,495/x
3. Step 3: Cross multiply
   713,560x = 978,495 × 978,495
4. Step 4: Simplify right side
   713,560x = 957,452,465,025
5. Step 5: Solve for x
   x = 957,452,465,025/713,560
6. Step 6: Final answer
   x = 1,341,796.72