Finding the Third Proportional to 4,761,968 and 9,995,648

Step by Step Solution

1. Step 1: Write the proportion equation
   4,761,968 : 9,995,648 = 9,995,648 : x
2. Step 2: Convert to fraction form
   4,761,968/9,995,648 = 9,995,648/x
3. Step 3: Cross multiply
   4,761,968x = 9,995,648 × 9,995,648
4. Step 4: Simplify right side
   4,761,968x = 99,912,978,939,904
5. Step 5: Solve for x
   x = 99,912,978,939,904/4,761,968
6. Step 6: Final answer
   x = 20,981,446.94