Finding the Third Proportional to 3,651,120 and 7,790,920

Step by Step Solution

1. Step 1: Write the proportion equation
   3,651,120 : 7,790,920 = 7,790,920 : x
2. Step 2: Convert to fraction form
   3,651,120/7,790,920 = 7,790,920/x
3. Step 3: Cross multiply
   3,651,120x = 7,790,920 × 7,790,920
4. Step 4: Simplify right side
   3,651,120x = 60,698,434,446,400
5. Step 5: Solve for x
   x = 60,698,434,446,400/3,651,120
6. Step 6: Final answer
   x = 16,624,606.82