Finding the Third Proportional to 4,636,552 and 9,958,687

Step by Step Solution

1. Step 1: Write the proportion equation
   4,636,552 : 9,958,687 = 9,958,687 : x
2. Step 2: Convert to fraction form
   4,636,552/9,958,687 = 9,958,687/x
3. Step 3: Cross multiply
   4,636,552x = 9,958,687 × 9,958,687
4. Step 4: Simplify right side
   4,636,552x = 99,175,446,763,969
5. Step 5: Solve for x
   x = 99,175,446,763,969/4,636,552
6. Step 6: Final answer
   x = 21,389,913.62