Finding the Third Proportional to 12,647,873,100.38 and 19,647,288,936

Step by Step Solution

1. Step 1: Write the proportion equation
   12,647,873,100.38 : 19,647,288,936 = 19,647,288,936 : x
2. Step 2: Convert to fraction form
   12,647,873,100.38/19,647,288,936 = 19,647,288,936/x
3. Step 3: Cross multiply
   12,647,873,100.38x = 19,647,288,936 × 19,647,288,936
4. Step 4: Simplify right side
   12,647,873,100.38x = 386,015,962,534,668,009,472
5. Step 5: Solve for x
   x = 386,015,962,534,668,009,472/12,647,873,100.38
6. Step 6: Final answer
   x = 30,520,227,351.37