Finding the Third Proportional to 449,376 and 978,105

Step by Step Solution

1. Step 1: Write the proportion equation
   449,376 : 978,105 = 978,105 : x
2. Step 2: Convert to fraction form
   449,376/978,105 = 978,105/x
3. Step 3: Cross multiply
   449,376x = 978,105 × 978,105
4. Step 4: Simplify right side
   449,376x = 956,689,391,025
5. Step 5: Solve for x
   x = 956,689,391,025/449,376
6. Step 6: Final answer
   x = 2,128,928.54