Finding the Third Proportional to 449,927 and 978,586

Step by Step Solution

1. Step 1: Write the proportion equation
   449,927 : 978,586 = 978,586 : x
2. Step 2: Convert to fraction form
   449,927/978,586 = 978,586/x
3. Step 3: Cross multiply
   449,927x = 978,586 × 978,586
4. Step 4: Simplify right side
   449,927x = 957,630,559,396
5. Step 5: Solve for x
   x = 957,630,559,396/449,927
6. Step 6: Final answer
   x = 2,128,413.19