Finding the Third Proportional to 713,630 and 978,546

Step by Step Solution

1. Step 1: Write the proportion equation
   713,630 : 978,546 = 978,546 : x
2. Step 2: Convert to fraction form
   713,630/978,546 = 978,546/x
3. Step 3: Cross multiply
   713,630x = 978,546 × 978,546
4. Step 4: Simplify right side
   713,630x = 957,552,274,116
5. Step 5: Solve for x
   x = 957,552,274,116/713,630
6. Step 6: Final answer
   x = 1,341,804.96