Finding the Third Proportional to 2,813,780 and 4,359,666

Step by Step Solution

1. Step 1: Write the proportion equation
   2,813,780 : 4,359,666 = 4,359,666 : x
2. Step 2: Convert to fraction form
   2,813,780/4,359,666 = 4,359,666/x
3. Step 3: Cross multiply
   2,813,780x = 4,359,666 × 4,359,666
4. Step 4: Simplify right side
   2,813,780x = 19,006,687,631,556
5. Step 5: Solve for x
   x = 19,006,687,631,556/2,813,780
6. Step 6: Final answer
   x = 6,754,859.17