Finding the Third Proportional to 1,331.25 and 2,059.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,331.25 : 2,059.31 = 2,059.31 : x
2. Step 2: Convert to fraction form
   1,331.25/2,059.31 = 2,059.31/x
3. Step 3: Cross multiply
   1,331.25x = 2,059.31 × 2,059.31
4. Step 4: Simplify right side
   1,331.25x = 4,240,767.97
5. Step 5: Solve for x
   x = 4,240,767.97/1,331.25
6. Step 6: Final answer
   x = 3,185.55