Finding the Third Proportional to 19,734,431,878 and 42,614,189,942

Step by Step Solution

1. Step 1: Write the proportion equation
   19,734,431,878 : 42,614,189,942 = 42,614,189,942 : x
2. Step 2: Convert to fraction form
   19,734,431,878/42,614,189,942 = 42,614,189,942/x
3. Step 3: Cross multiply
   19,734,431,878x = 42,614,189,942 × 42,614,189,942
4. Step 4: Simplify right side
   19,734,431,878x = 1,815,969,184,412,853,862,400
5. Step 5: Solve for x
   x = 1,815,969,184,412,853,862,400/19,734,431,878
6. Step 6: Final answer
   x = 92,020,342,700.48