Finding the Third Proportional to 713,558 and 978,481

Step by Step Solution

1. Step 1: Write the proportion equation
   713,558 : 978,481 = 978,481 : x
2. Step 2: Convert to fraction form
   713,558/978,481 = 978,481/x
3. Step 3: Cross multiply
   713,558x = 978,481 × 978,481
4. Step 4: Simplify right side
   713,558x = 957,425,067,361
5. Step 5: Solve for x
   x = 957,425,067,361/713,558
6. Step 6: Final answer
   x = 1,341,762.08