Finding the Third Proportional to 411,057 and 900,666

Step by Step Solution

1. Step 1: Write the proportion equation
   411,057 : 900,666 = 900,666 : x
2. Step 2: Convert to fraction form
   411,057/900,666 = 900,666/x
3. Step 3: Cross multiply
   411,057x = 900,666 × 900,666
4. Step 4: Simplify right side
   411,057x = 811,199,243,556
5. Step 5: Solve for x
   x = 811,199,243,556/411,057
6. Step 6: Final answer
   x = 1,973,447.10