Finding the Third Proportional to 2,058.75 and 5,119.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,058.75 : 5,119.88 = 5,119.88 : x
2. Step 2: Convert to fraction form
   2,058.75/5,119.88 = 5,119.88/x
3. Step 3: Cross multiply
   2,058.75x = 5,119.88 × 5,119.88
4. Step 4: Simplify right side
   2,058.75x = 26,213,120.02
5. Step 5: Solve for x
   x = 26,213,120.02/2,058.75
6. Step 6: Final answer
   x = 12,732.54