Finding the Third Proportional to 9,939,990 and 21,741,032

Step by Step Solution

1. Step 1: Write the proportion equation
   9,939,990 : 21,741,032 = 21,741,032 : x
2. Step 2: Convert to fraction form
   9,939,990/21,741,032 = 21,741,032/x
3. Step 3: Cross multiply
   9,939,990x = 21,741,032 × 21,741,032
4. Step 4: Simplify right side
   9,939,990x = 472,672,472,425,024
5. Step 5: Solve for x
   x = 472,672,472,425,024/9,939,990
6. Step 6: Final answer
   x = 47,552,610.46