Finding the Third Proportional to 449,386 and 978,116

Step by Step Solution

1. Step 1: Write the proportion equation
   449,386 : 978,116 = 978,116 : x
2. Step 2: Convert to fraction form
   449,386/978,116 = 978,116/x
3. Step 3: Cross multiply
   449,386x = 978,116 × 978,116
4. Step 4: Simplify right side
   449,386x = 956,710,909,456
5. Step 5: Solve for x
   x = 956,710,909,456/449,386
6. Step 6: Final answer
   x = 2,128,929.05