Finding the Third Proportional to 4,143,634 and 9,039,938

Step by Step Solution

1. Step 1: Write the proportion equation
   4,143,634 : 9,039,938 = 9,039,938 : x
2. Step 2: Convert to fraction form
   4,143,634/9,039,938 = 9,039,938/x
3. Step 3: Cross multiply
   4,143,634x = 9,039,938 × 9,039,938
4. Step 4: Simplify right side
   4,143,634x = 81,720,479,043,844
5. Step 5: Solve for x
   x = 81,720,479,043,844/4,143,634
6. Step 6: Final answer
   x = 19,721,934.67