Finding the Third Proportional to 5,899,530 and 12,871,419

Step by Step Solution

1. Step 1: Write the proportion equation
   5,899,530 : 12,871,419 = 12,871,419 : x
2. Step 2: Convert to fraction form
   5,899,530/12,871,419 = 12,871,419/x
3. Step 3: Cross multiply
   5,899,530x = 12,871,419 × 12,871,419
4. Step 4: Simplify right side
   5,899,530x = 165,673,427,073,561
5. Step 5: Solve for x
   x = 165,673,427,073,561/5,899,530
6. Step 6: Final answer
   x = 28,082,478.96