Finding the Third Proportional to 810,666 and 1,807,740

Step by Step Solution

1. Step 1: Write the proportion equation
   810,666 : 1,807,740 = 1,807,740 : x
2. Step 2: Convert to fraction form
   810,666/1,807,740 = 1,807,740/x
3. Step 3: Cross multiply
   810,666x = 1,807,740 × 1,807,740
4. Step 4: Simplify right side
   810,666x = 3,267,923,907,600
5. Step 5: Solve for x
   x = 3,267,923,907,600/810,666
6. Step 6: Final answer
   x = 4,031,159.45