Finding the Third Proportional to 9,982,884 and 21,478,932

Step by Step Solution

1. Step 1: Write the proportion equation
   9,982,884 : 21,478,932 = 21,478,932 : x
2. Step 2: Convert to fraction form
   9,982,884/21,478,932 = 21,478,932/x
3. Step 3: Cross multiply
   9,982,884x = 21,478,932 × 21,478,932
4. Step 4: Simplify right side
   9,982,884x = 461,344,519,860,624
5. Step 5: Solve for x
   x = 461,344,519,860,624/9,982,884
6. Step 6: Final answer
   x = 46,213,551.10