Finding the Third Proportional to 453,664 and 978,198

Step by Step Solution

1. Step 1: Write the proportion equation
   453,664 : 978,198 = 978,198 : x
2. Step 2: Convert to fraction form
   453,664/978,198 = 978,198/x
3. Step 3: Cross multiply
   453,664x = 978,198 × 978,198
4. Step 4: Simplify right side
   453,664x = 956,871,327,204
5. Step 5: Solve for x
   x = 956,871,327,204/453,664
6. Step 6: Final answer
   x = 2,109,207.09