Finding the Third Proportional to 1,665,306 and 2,213,919

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665,306 : 2,213,919 = 2,213,919 : x
2. Step 2: Convert to fraction form
   1,665,306/2,213,919 = 2,213,919/x
3. Step 3: Cross multiply
   1,665,306x = 2,213,919 × 2,213,919
4. Step 4: Simplify right side
   1,665,306x = 4,901,437,338,561
5. Step 5: Solve for x
   x = 4,901,437,338,561/1,665,306
6. Step 6: Final answer
   x = 2,943,265.28