Finding the Third Proportional to 404,457 and 869,970

Step by Step Solution

1. Step 1: Write the proportion equation
   404,457 : 869,970 = 869,970 : x
2. Step 2: Convert to fraction form
   404,457/869,970 = 869,970/x
3. Step 3: Cross multiply
   404,457x = 869,970 × 869,970
4. Step 4: Simplify right side
   404,457x = 756,847,800,900
5. Step 5: Solve for x
   x = 756,847,800,900/404,457
6. Step 6: Final answer
   x = 1,871,268.89