Finding the Third Proportional to 899,540 and 1,286,353

Step by Step Solution

1. Step 1: Write the proportion equation
   899,540 : 1,286,353 = 1,286,353 : x
2. Step 2: Convert to fraction form
   899,540/1,286,353 = 1,286,353/x
3. Step 3: Cross multiply
   899,540x = 1,286,353 × 1,286,353
4. Step 4: Simplify right side
   899,540x = 1,654,704,040,609
5. Step 5: Solve for x
   x = 1,654,704,040,609/899,540
6. Step 6: Final answer
   x = 1,839,500.23