Finding the Third Proportional to 476,105 and 991,666

Step by Step Solution

1. Step 1: Write the proportion equation
   476,105 : 991,666 = 991,666 : x
2. Step 2: Convert to fraction form
   476,105/991,666 = 991,666/x
3. Step 3: Cross multiply
   476,105x = 991,666 × 991,666
4. Step 4: Simplify right side
   476,105x = 983,401,455,556
5. Step 5: Solve for x
   x = 983,401,455,556/476,105
6. Step 6: Final answer
   x = 2,065,513.82