Finding the Third Proportional to 918,104 and 1,988,666

Step by Step Solution

1. Step 1: Write the proportion equation
   918,104 : 1,988,666 = 1,988,666 : x
2. Step 2: Convert to fraction form
   918,104/1,988,666 = 1,988,666/x
3. Step 3: Cross multiply
   918,104x = 1,988,666 × 1,988,666
4. Step 4: Simplify right side
   918,104x = 3,954,792,459,556
5. Step 5: Solve for x
   x = 3,954,792,459,556/918,104
6. Step 6: Final answer
   x = 4,307,564.79