Finding the Third Proportional to 404,456 and 869,968

Step by Step Solution

1. Step 1: Write the proportion equation
   404,456 : 869,968 = 869,968 : x
2. Step 2: Convert to fraction form
   404,456/869,968 = 869,968/x
3. Step 3: Cross multiply
   404,456x = 869,968 × 869,968
4. Step 4: Simplify right side
   404,456x = 756,844,321,024
5. Step 5: Solve for x
   x = 756,844,321,024/404,456
6. Step 6: Final answer
   x = 1,871,264.91