Finding the Third Proportional to 713,592 and 978,517

Step by Step Solution

1. Step 1: Write the proportion equation
   713,592 : 978,517 = 978,517 : x
2. Step 2: Convert to fraction form
   713,592/978,517 = 978,517/x
3. Step 3: Cross multiply
   713,592x = 978,517 × 978,517
4. Step 4: Simplify right side
   713,592x = 957,495,519,289
5. Step 5: Solve for x
   x = 957,495,519,289/713,592
6. Step 6: Final answer
   x = 1,341,796.88