Finding the Third Proportional to 449,401.50 and 978,156

Step by Step Solution

1. Step 1: Write the proportion equation
   449,401.50 : 978,156 = 978,156 : x
2. Step 2: Convert to fraction form
   449,401.50/978,156 = 978,156/x
3. Step 3: Cross multiply
   449,401.50x = 978,156 × 978,156
4. Step 4: Simplify right side
   449,401.50x = 956,789,160,336
5. Step 5: Solve for x
   x = 956,789,160,336/449,401.50
6. Step 6: Final answer
   x = 2,129,029.74