Finding the Third Proportional to 713,540 and 978,465

Step by Step Solution

1. Step 1: Write the proportion equation
   713,540 : 978,465 = 978,465 : x
2. Step 2: Convert to fraction form
   713,540/978,465 = 978,465/x
3. Step 3: Cross multiply
   713,540x = 978,465 × 978,465
4. Step 4: Simplify right side
   713,540x = 957,393,756,225
5. Step 5: Solve for x
   x = 957,393,756,225/713,540
6. Step 6: Final answer
   x = 1,341,752.05