Finding the Third Proportional to 6,058.13 and 12,688.31

Step by Step Solution

1. Step 1: Write the proportion equation
   6,058.13 : 12,688.31 = 12,688.31 : x
2. Step 2: Convert to fraction form
   6,058.13/12,688.31 = 12,688.31/x
3. Step 3: Cross multiply
   6,058.13x = 12,688.31 × 12,688.31
4. Step 4: Simplify right side
   6,058.13x = 160,993,274.10
5. Step 5: Solve for x
   x = 160,993,274.10/6,058.13
6. Step 6: Final answer
   x = 26,574.77