Finding the Third Proportional to 1,485.75 and 2,141.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,485.75 : 2,141.25 = 2,141.25 : x
2. Step 2: Convert to fraction form
   1,485.75/2,141.25 = 2,141.25/x
3. Step 3: Cross multiply
   1,485.75x = 2,141.25 × 2,141.25
4. Step 4: Simplify right side
   1,485.75x = 4,584,951.56
5. Step 5: Solve for x
   x = 4,584,951.56/1,485.75
6. Step 6: Final answer
   x = 3,085.95