Finding the Third Proportional to 713,514 and 978,415

Step by Step Solution

1. Step 1: Write the proportion equation
   713,514 : 978,415 = 978,415 : x
2. Step 2: Convert to fraction form
   713,514/978,415 = 978,415/x
3. Step 3: Cross multiply
   713,514x = 978,415 × 978,415
4. Step 4: Simplify right side
   713,514x = 957,295,912,225
5. Step 5: Solve for x
   x = 957,295,912,225/713,514
6. Step 6: Final answer
   x = 1,341,663.81