Finding the Third Proportional to 713,441 and 978,307

Step by Step Solution

1. Step 1: Write the proportion equation
   713,441 : 978,307 = 978,307 : x
2. Step 2: Convert to fraction form
   713,441/978,307 = 978,307/x
3. Step 3: Cross multiply
   713,441x = 978,307 × 978,307
4. Step 4: Simplify right side
   713,441x = 957,084,586,249
5. Step 5: Solve for x
   x = 957,084,586,249/713,441
6. Step 6: Final answer
   x = 1,341,504.88