Finding the Third Proportional to 11,811,808 and 18,221,404

Step by Step Solution

1. Step 1: Write the proportion equation
   11,811,808 : 18,221,404 = 18,221,404 : x
2. Step 2: Convert to fraction form
   11,811,808/18,221,404 = 18,221,404/x
3. Step 3: Cross multiply
   11,811,808x = 18,221,404 × 18,221,404
4. Step 4: Simplify right side
   11,811,808x = 332,019,563,731,216
5. Step 5: Solve for x
   x = 332,019,563,731,216/11,811,808
6. Step 6: Final answer
   x = 28,109,122.98