Finding the Third Proportional to 4,636,546 and 9,958,676

Step by Step Solution

1. Step 1: Write the proportion equation
   4,636,546 : 9,958,676 = 9,958,676 : x
2. Step 2: Convert to fraction form
   4,636,546/9,958,676 = 9,958,676/x
3. Step 3: Cross multiply
   4,636,546x = 9,958,676 × 9,958,676
4. Step 4: Simplify right side
   4,636,546x = 99,175,227,672,976
5. Step 5: Solve for x
   x = 99,175,227,672,976/4,636,546
6. Step 6: Final answer
   x = 21,389,894.04