Finding the Third Proportional to 4,799,988 and 10,139,544

Step by Step Solution

1. Step 1: Write the proportion equation
   4,799,988 : 10,139,544 = 10,139,544 : x
2. Step 2: Convert to fraction form
   4,799,988/10,139,544 = 10,139,544/x
3. Step 3: Cross multiply
   4,799,988x = 10,139,544 × 10,139,544
4. Step 4: Simplify right side
   4,799,988x = 102,810,352,527,936
5. Step 5: Solve for x
   x = 102,810,352,527,936/4,799,988
6. Step 6: Final answer
   x = 21,418,876.99