Finding the Third Proportional to 12,403,606,874 and 19,065,240,668

Step by Step Solution

1. Step 1: Write the proportion equation
   12,403,606,874 : 19,065,240,668 = 19,065,240,668 : x
2. Step 2: Convert to fraction form
   12,403,606,874/19,065,240,668 = 19,065,240,668/x
3. Step 3: Cross multiply
   12,403,606,874x = 19,065,240,668 × 19,065,240,668
4. Step 4: Simplify right side
   12,403,606,874x = 363,483,401,728,761,069,568
5. Step 5: Solve for x
   x = 363,483,401,728,761,069,568/12,403,606,874
6. Step 6: Final answer
   x = 29,304,653,510.96