Finding the Third Proportional to 2,615,448 and 5,631,666

Step by Step Solution

1. Step 1: Write the proportion equation
   2,615,448 : 5,631,666 = 5,631,666 : x
2. Step 2: Convert to fraction form
   2,615,448/5,631,666 = 5,631,666/x
3. Step 3: Cross multiply
   2,615,448x = 5,631,666 × 5,631,666
4. Step 4: Simplify right side
   2,615,448x = 31,715,661,935,556
5. Step 5: Solve for x
   x = 31,715,661,935,556/2,615,448
6. Step 6: Final answer
   x = 12,126,282.74