Finding the Third Proportional to 9,434,650 and 20,215,520

Step by Step Solution

1. Step 1: Write the proportion equation
   9,434,650 : 20,215,520 = 20,215,520 : x
2. Step 2: Convert to fraction form
   9,434,650/20,215,520 = 20,215,520/x
3. Step 3: Cross multiply
   9,434,650x = 20,215,520 × 20,215,520
4. Step 4: Simplify right side
   9,434,650x = 408,667,248,870,400
5. Step 5: Solve for x
   x = 408,667,248,870,400/9,434,650
6. Step 6: Final answer
   x = 43,315,570.68