Finding the Third Proportional to 1,661,208 and 3,636,912

Step by Step Solution

1. Step 1: Write the proportion equation
   1,661,208 : 3,636,912 = 3,636,912 : x
2. Step 2: Convert to fraction form
   1,661,208/3,636,912 = 3,636,912/x
3. Step 3: Cross multiply
   1,661,208x = 3,636,912 × 3,636,912
4. Step 4: Simplify right side
   1,661,208x = 13,227,128,895,744
5. Step 5: Solve for x
   x = 13,227,128,895,744/1,661,208
6. Step 6: Final answer
   x = 7,962,355.64