Finding the Third Proportional to 713,488 and 978,375

Step by Step Solution

1. Step 1: Write the proportion equation
   713,488 : 978,375 = 978,375 : x
2. Step 2: Convert to fraction form
   713,488/978,375 = 978,375/x
3. Step 3: Cross multiply
   713,488x = 978,375 × 978,375
4. Step 4: Simplify right side
   713,488x = 957,217,640,625
5. Step 5: Solve for x
   x = 957,217,640,625/713,488
6. Step 6: Final answer
   x = 1,341,603.00