Finding the Third Proportional to 853,860 and 1,339,404

Step by Step Solution

1. Step 1: Write the proportion equation
   853,860 : 1,339,404 = 1,339,404 : x
2. Step 2: Convert to fraction form
   853,860/1,339,404 = 1,339,404/x
3. Step 3: Cross multiply
   853,860x = 1,339,404 × 1,339,404
4. Step 4: Simplify right side
   853,860x = 1,794,003,075,216
5. Step 5: Solve for x
   x = 1,794,003,075,216/853,860
6. Step 6: Final answer
   x = 2,101,050.61