Finding the Third Proportional to 9,231,772 and 21,369,901

Step by Step Solution

1. Step 1: Write the proportion equation
   9,231,772 : 21,369,901 = 21,369,901 : x
2. Step 2: Convert to fraction form
   9,231,772/21,369,901 = 21,369,901/x
3. Step 3: Cross multiply
   9,231,772x = 21,369,901 × 21,369,901
4. Step 4: Simplify right side
   9,231,772x = 456,672,668,749,801
5. Step 5: Solve for x
   x = 456,672,668,749,801/9,231,772
6. Step 6: Final answer
   x = 49,467,498.63