Finding the Third Proportional to 3,554,136 and 5,078,880

Step by Step Solution

1. Step 1: Write the proportion equation
   3,554,136 : 5,078,880 = 5,078,880 : x
2. Step 2: Convert to fraction form
   3,554,136/5,078,880 = 5,078,880/x
3. Step 3: Cross multiply
   3,554,136x = 5,078,880 × 5,078,880
4. Step 4: Simplify right side
   3,554,136x = 25,795,022,054,400
5. Step 5: Solve for x
   x = 25,795,022,054,400/3,554,136
6. Step 6: Final answer
   x = 7,257,747.61