Finding the Third Proportional to 1,336.50 and 2,058.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,336.50 : 2,058.75 = 2,058.75 : x
2. Step 2: Convert to fraction form
   1,336.50/2,058.75 = 2,058.75/x
3. Step 3: Cross multiply
   1,336.50x = 2,058.75 × 2,058.75
4. Step 4: Simplify right side
   1,336.50x = 4,238,451.56
5. Step 5: Solve for x
   x = 4,238,451.56/1,336.50
6. Step 6: Final answer
   x = 3,171.31