Finding the Third Proportional to 3,563,472 and 7,770,144

Step by Step Solution

1. Step 1: Write the proportion equation
   3,563,472 : 7,770,144 = 7,770,144 : x
2. Step 2: Convert to fraction form
   3,563,472/7,770,144 = 7,770,144/x
3. Step 3: Cross multiply
   3,563,472x = 7,770,144 × 7,770,144
4. Step 4: Simplify right side
   3,563,472x = 60,375,137,780,736
5. Step 5: Solve for x
   x = 60,375,137,780,736/3,563,472
6. Step 6: Final answer
   x = 16,942,784.39