Finding the Third Proportional to 713,670 and 978,606

Step by Step Solution

1. Step 1: Write the proportion equation
   713,670 : 978,606 = 978,606 : x
2. Step 2: Convert to fraction form
   713,670/978,606 = 978,606/x
3. Step 3: Cross multiply
   713,670x = 978,606 × 978,606
4. Step 4: Simplify right side
   713,670x = 957,669,703,236
5. Step 5: Solve for x
   x = 957,669,703,236/713,670
6. Step 6: Final answer
   x = 1,341,894.30