Finding the Third Proportional to 404,689 and 874,222

Step by Step Solution

1. Step 1: Write the proportion equation
   404,689 : 874,222 = 874,222 : x
2. Step 2: Convert to fraction form
   404,689/874,222 = 874,222/x
3. Step 3: Cross multiply
   404,689x = 874,222 × 874,222
4. Step 4: Simplify right side
   404,689x = 764,264,105,284
5. Step 5: Solve for x
   x = 764,264,105,284/404,689
6. Step 6: Final answer
   x = 1,888,522.06