Finding the Third Proportional to 713,616 and 978,553

Step by Step Solution

1. Step 1: Write the proportion equation
   713,616 : 978,553 = 978,553 : x
2. Step 2: Convert to fraction form
   713,616/978,553 = 978,553/x
3. Step 3: Cross multiply
   713,616x = 978,553 × 978,553
4. Step 4: Simplify right side
   713,616x = 957,565,973,809
5. Step 5: Solve for x
   x = 957,565,973,809/713,616
6. Step 6: Final answer
   x = 1,341,850.48