Finding the Third Proportional to 9,772,443 and 21,059,559

Step by Step Solution

1. Step 1: Write the proportion equation
   9,772,443 : 21,059,559 = 21,059,559 : x
2. Step 2: Convert to fraction form
   9,772,443/21,059,559 = 21,059,559/x
3. Step 3: Cross multiply
   9,772,443x = 21,059,559 × 21,059,559
4. Step 4: Simplify right side
   9,772,443x = 443,505,025,274,481
5. Step 5: Solve for x
   x = 443,505,025,274,481/9,772,443
6. Step 6: Final answer
   x = 45,383,229.69