Finding the Third Proportional to 4,538,976 and 9,834,420

Step by Step Solution

1. Step 1: Write the proportion equation
   4,538,976 : 9,834,420 = 9,834,420 : x
2. Step 2: Convert to fraction form
   4,538,976/9,834,420 = 9,834,420/x
3. Step 3: Cross multiply
   4,538,976x = 9,834,420 × 9,834,420
4. Step 4: Simplify right side
   4,538,976x = 96,715,816,736,400
5. Step 5: Solve for x
   x = 96,715,816,736,400/4,538,976
6. Step 6: Final answer
   x = 21,307,849.33