Finding the Third Proportional to 2,128.04 and 4,583.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,128.04 : 4,583.57 = 4,583.57 : x
2. Step 2: Convert to fraction form
   2,128.04/4,583.57 = 4,583.57/x
3. Step 3: Cross multiply
   2,128.04x = 4,583.57 × 4,583.57
4. Step 4: Simplify right side
   2,128.04x = 21,009,081.00
5. Step 5: Solve for x
   x = 21,009,081.00/2,128.04
6. Step 6: Final answer
   x = 9,872.49