Finding the Third Proportional to 2,190.75 and 4,483.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,190.75 : 4,483.88 = 4,483.88 : x
2. Step 2: Convert to fraction form
   2,190.75/4,483.88 = 4,483.88/x
3. Step 3: Cross multiply
   2,190.75x = 4,483.88 × 4,483.88
4. Step 4: Simplify right side
   2,190.75x = 20,105,135.02
5. Step 5: Solve for x
   x = 20,105,135.02/2,190.75
6. Step 6: Final answer
   x = 9,177.28