Finding the Third Proportional to 713,466 and 978,343

Step by Step Solution

1. Step 1: Write the proportion equation
   713,466 : 978,343 = 978,343 : x
2. Step 2: Convert to fraction form
   713,466/978,343 = 978,343/x
3. Step 3: Cross multiply
   713,466x = 978,343 × 978,343
4. Step 4: Simplify right side
   713,466x = 957,155,025,649
5. Step 5: Solve for x
   x = 957,155,025,649/713,466
6. Step 6: Final answer
   x = 1,341,556.61