Finding the Third Proportional to 713,624 and 978,565

Step by Step Solution

1. Step 1: Write the proportion equation
   713,624 : 978,565 = 978,565 : x
2. Step 2: Convert to fraction form
   713,624/978,565 = 978,565/x
3. Step 3: Cross multiply
   713,624x = 978,565 × 978,565
4. Step 4: Simplify right side
   713,624x = 957,589,459,225
5. Step 5: Solve for x
   x = 957,589,459,225/713,624
6. Step 6: Final answer
   x = 1,341,868.35