Finding the Third Proportional to 7,765,404.82 and 12,057,067.69

Step by Step Solution

1. Step 1: Write the proportion equation
   7,765,404.82 : 12,057,067.69 = 12,057,067.69 : x
2. Step 2: Convert to fraction form
   7,765,404.82/12,057,067.69 = 12,057,067.69/x
3. Step 3: Cross multiply
   7,765,404.82x = 12,057,067.69 × 12,057,067.69
4. Step 4: Simplify right side
   7,765,404.82x = 145,372,881,220,956.59
5. Step 5: Solve for x
   x = 145,372,881,220,956.59/7,765,404.82
6. Step 6: Final answer
   x = 18,720,579.88