Finding the Third Proportional to 4,788,828 and 10,640,540

Step by Step Solution

1. Step 1: Write the proportion equation
   4,788,828 : 10,640,540 = 10,640,540 : x
2. Step 2: Convert to fraction form
   4,788,828/10,640,540 = 10,640,540/x
3. Step 3: Cross multiply
   4,788,828x = 10,640,540 × 10,640,540
4. Step 4: Simplify right side
   4,788,828x = 113,221,091,491,600
5. Step 5: Solve for x
   x = 113,221,091,491,600/4,788,828
6. Step 6: Final answer
   x = 23,642,755.91