Finding the Third Proportional to 30,858,757 and 42,031,067

Step by Step Solution

1. Step 1: Write the proportion equation
   30,858,757 : 42,031,067 = 42,031,067 : x
2. Step 2: Convert to fraction form
   30,858,757/42,031,067 = 42,031,067/x
3. Step 3: Cross multiply
   30,858,757x = 42,031,067 × 42,031,067
4. Step 4: Simplify right side
   30,858,757x = 1,766,610,593,158,489
5. Step 5: Solve for x
   x = 1,766,610,593,158,489/30,858,757
6. Step 6: Final answer
   x = 57,248,274.55