Finding the Third Proportional to 9,789,560 and 20,996,256

Step by Step Solution

1. Step 1: Write the proportion equation
   9,789,560 : 20,996,256 = 20,996,256 : x
2. Step 2: Convert to fraction form
   9,789,560/20,996,256 = 20,996,256/x
3. Step 3: Cross multiply
   9,789,560x = 20,996,256 × 20,996,256
4. Step 4: Simplify right side
   9,789,560x = 440,842,766,017,536
5. Step 5: Solve for x
   x = 440,842,766,017,536/9,789,560
6. Step 6: Final answer
   x = 45,031,928.51