Finding the Third Proportional to 4,543,916 and 9,726,256

Step by Step Solution

1. Step 1: Write the proportion equation
   4,543,916 : 9,726,256 = 9,726,256 : x
2. Step 2: Convert to fraction form
   4,543,916/9,726,256 = 9,726,256/x
3. Step 3: Cross multiply
   4,543,916x = 9,726,256 × 9,726,256
4. Step 4: Simplify right side
   4,543,916x = 94,600,055,777,536
5. Step 5: Solve for x
   x = 94,600,055,777,536/4,543,916
6. Step 6: Final answer
   x = 20,819,059.11