Finding the Third Proportional to 3,651,608 and 7,880,580

Step by Step Solution

1. Step 1: Write the proportion equation
   3,651,608 : 7,880,580 = 7,880,580 : x
2. Step 2: Convert to fraction form
   3,651,608/7,880,580 = 7,880,580/x
3. Step 3: Cross multiply
   3,651,608x = 7,880,580 × 7,880,580
4. Step 4: Simplify right side
   3,651,608x = 62,103,541,136,400
5. Step 5: Solve for x
   x = 62,103,541,136,400/3,651,608
6. Step 6: Final answer
   x = 17,007,176.33