Finding the Third Proportional to 4,386,905 and 9,467,424

Step by Step Solution

1. Step 1: Write the proportion equation
   4,386,905 : 9,467,424 = 9,467,424 : x
2. Step 2: Convert to fraction form
   4,386,905/9,467,424 = 9,467,424/x
3. Step 3: Cross multiply
   4,386,905x = 9,467,424 × 9,467,424
4. Step 4: Simplify right side
   4,386,905x = 89,632,117,195,776
5. Step 5: Solve for x
   x = 89,632,117,195,776/4,386,905
6. Step 6: Final answer
   x = 20,431,743.38