Finding the Third Proportional to 449,404 and 978,148

Step by Step Solution

1. Step 1: Write the proportion equation
   449,404 : 978,148 = 978,148 : x
2. Step 2: Convert to fraction form
   449,404/978,148 = 978,148/x
3. Step 3: Cross multiply
   449,404x = 978,148 × 978,148
4. Step 4: Simplify right side
   449,404x = 956,773,509,904
5. Step 5: Solve for x
   x = 956,773,509,904/449,404
6. Step 6: Final answer
   x = 2,128,983.08