Finding the Third Proportional to 21,571,968 and 30,342,504

Step by Step Solution

1. Step 1: Write the proportion equation
   21,571,968 : 30,342,504 = 30,342,504 : x
2. Step 2: Convert to fraction form
   21,571,968/30,342,504 = 30,342,504/x
3. Step 3: Cross multiply
   21,571,968x = 30,342,504 × 30,342,504
4. Step 4: Simplify right side
   21,571,968x = 920,667,548,990,016
5. Step 5: Solve for x
   x = 920,667,548,990,016/21,571,968
6. Step 6: Final answer
   x = 42,678,885.35