Finding the Third Proportional to 4,636,606 and 9,958,796

Step by Step Solution

1. Step 1: Write the proportion equation
   4,636,606 : 9,958,796 = 9,958,796 : x
2. Step 2: Convert to fraction form
   4,636,606/9,958,796 = 9,958,796/x
3. Step 3: Cross multiply
   4,636,606x = 9,958,796 × 9,958,796
4. Step 4: Simplify right side
   4,636,606x = 99,177,617,769,616
5. Step 5: Solve for x
   x = 99,177,617,769,616/4,636,606
6. Step 6: Final answer
   x = 21,390,132.73