Finding the Third Proportional to 3,560,220 and 5,509,281

Step by Step Solution

1. Step 1: Write the proportion equation
   3,560,220 : 5,509,281 = 5,509,281 : x
2. Step 2: Convert to fraction form
   3,560,220/5,509,281 = 5,509,281/x
3. Step 3: Cross multiply
   3,560,220x = 5,509,281 × 5,509,281
4. Step 4: Simplify right side
   3,560,220x = 30,352,177,136,961
5. Step 5: Solve for x
   x = 30,352,177,136,961/3,560,220
6. Step 6: Final answer
   x = 8,525,365.61