Finding the Third Proportional to 9,939,992 and 21,741,036

Step by Step Solution

1. Step 1: Write the proportion equation
   9,939,992 : 21,741,036 = 21,741,036 : x
2. Step 2: Convert to fraction form
   9,939,992/21,741,036 = 21,741,036/x
3. Step 3: Cross multiply
   9,939,992x = 21,741,036 × 21,741,036
4. Step 4: Simplify right side
   9,939,992x = 472,672,646,353,296
5. Step 5: Solve for x
   x = 472,672,646,353,296/9,939,992
6. Step 6: Final answer
   x = 47,552,618.39