Finding the Third Proportional to 3,128.06 and 4,827.09

Step by Step Solution

1. Step 1: Write the proportion equation
   3,128.06 : 4,827.09 = 4,827.09 : x
2. Step 2: Convert to fraction form
   3,128.06/4,827.09 = 4,827.09/x
3. Step 3: Cross multiply
   3,128.06x = 4,827.09 × 4,827.09
4. Step 4: Simplify right side
   3,128.06x = 23,300,834.07
5. Step 5: Solve for x
   x = 23,300,834.07/3,128.06
6. Step 6: Final answer
   x = 7,448.97