Finding the Third Proportional to 21,018,596 and 31,678,233

Step by Step Solution

1. Step 1: Write the proportion equation
   21,018,596 : 31,678,233 = 31,678,233 : x
2. Step 2: Convert to fraction form
   21,018,596/31,678,233 = 31,678,233/x
3. Step 3: Cross multiply
   21,018,596x = 31,678,233 × 31,678,233
4. Step 4: Simplify right side
   21,018,596x = 1,003,510,446,002,289
5. Step 5: Solve for x
   x = 1,003,510,446,002,289/21,018,596
6. Step 6: Final answer
   x = 47,743,933.32