Finding the Third Proportional to 3,391,323 and 7,371,678

Step by Step Solution

1. Step 1: Write the proportion equation
   3,391,323 : 7,371,678 = 7,371,678 : x
2. Step 2: Convert to fraction form
   3,391,323/7,371,678 = 7,371,678/x
3. Step 3: Cross multiply
   3,391,323x = 7,371,678 × 7,371,678
4. Step 4: Simplify right side
   3,391,323x = 54,341,636,535,684
5. Step 5: Solve for x
   x = 54,341,636,535,684/3,391,323
6. Step 6: Final answer
   x = 16,023,727.77