Finding the Third Proportional to 4,111.75 and 8,880.25

Step by Step Solution

1. Step 1: Write the proportion equation
   4,111.75 : 8,880.25 = 8,880.25 : x
2. Step 2: Convert to fraction form
   4,111.75/8,880.25 = 8,880.25/x
3. Step 3: Cross multiply
   4,111.75x = 8,880.25 × 8,880.25
4. Step 4: Simplify right side
   4,111.75x = 78,858,840.06
5. Step 5: Solve for x
   x = 78,858,840.06/4,111.75
6. Step 6: Final answer
   x = 19,178.90