Finding the Third Proportional to 608,872 and 978,353

Step by Step Solution

1. Step 1: Write the proportion equation
   608,872 : 978,353 = 978,353 : x
2. Step 2: Convert to fraction form
   608,872/978,353 = 978,353/x
3. Step 3: Cross multiply
   608,872x = 978,353 × 978,353
4. Step 4: Simplify right side
   608,872x = 957,174,592,609
5. Step 5: Solve for x
   x = 957,174,592,609/608,872
6. Step 6: Final answer
   x = 1,572,045.67