Finding the Third Proportional to 713,574 and 978,516

Step by Step Solution

1. Step 1: Write the proportion equation
   713,574 : 978,516 = 978,516 : x
2. Step 2: Convert to fraction form
   713,574/978,516 = 978,516/x
3. Step 3: Cross multiply
   713,574x = 978,516 × 978,516
4. Step 4: Simplify right side
   713,574x = 957,493,562,256
5. Step 5: Solve for x
   x = 957,493,562,256/713,574
6. Step 6: Final answer
   x = 1,341,827.98