Finding the Third Proportional to 12,647,873,091.38 and 19,647,288,922.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,647,873,091.38 : 19,647,288,922.50 = 19,647,288,922.50 : x
2. Step 2: Convert to fraction form
   12,647,873,091.38/19,647,288,922.50 = 19,647,288,922.50/x
3. Step 3: Cross multiply
   12,647,873,091.38x = 19,647,288,922.50 × 19,647,288,922.50
4. Step 4: Simplify right side
   12,647,873,091.38x = 386,015,962,004,191,182,848
5. Step 5: Solve for x
   x = 386,015,962,004,191,182,848/12,647,873,091.38
6. Step 6: Final answer
   x = 30,520,227,331.14