Finding the Third Proportional to 4,543,934 and 9,726,309

Step by Step Solution

1. Step 1: Write the proportion equation
   4,543,934 : 9,726,309 = 9,726,309 : x
2. Step 2: Convert to fraction form
   4,543,934/9,726,309 = 9,726,309/x
3. Step 3: Cross multiply
   4,543,934x = 9,726,309 × 9,726,309
4. Step 4: Simplify right side
   4,543,934x = 94,601,086,763,481
5. Step 5: Solve for x
   x = 94,601,086,763,481/4,543,934
6. Step 6: Final answer
   x = 20,819,203.53