Finding the Third Proportional to 449,392 and 978,124

Step by Step Solution

1. Step 1: Write the proportion equation
   449,392 : 978,124 = 978,124 : x
2. Step 2: Convert to fraction form
   449,392/978,124 = 978,124/x
3. Step 3: Cross multiply
   449,392x = 978,124 × 978,124
4. Step 4: Simplify right side
   449,392x = 956,726,559,376
5. Step 5: Solve for x
   x = 956,726,559,376/449,392
6. Step 6: Final answer
   x = 2,128,935.45