Finding the Third Proportional to 3,608,436 and 7,780,998

Step by Step Solution

1. Step 1: Write the proportion equation
   3,608,436 : 7,780,998 = 7,780,998 : x
2. Step 2: Convert to fraction form
   3,608,436/7,780,998 = 7,780,998/x
3. Step 3: Cross multiply
   3,608,436x = 7,780,998 × 7,780,998
4. Step 4: Simplify right side
   3,608,436x = 60,543,929,876,004
5. Step 5: Solve for x
   x = 60,543,929,876,004/3,608,436
6. Step 6: Final answer
   x = 16,778,440.82