Finding the Third Proportional to 1,908.88 and 3,139.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,908.88 : 3,139.07 = 3,139.07 : x
2. Step 2: Convert to fraction form
   1,908.88/3,139.07 = 3,139.07/x
3. Step 3: Cross multiply
   1,908.88x = 3,139.07 × 3,139.07
4. Step 4: Simplify right side
   1,908.88x = 9,853,737.90
5. Step 5: Solve for x
   x = 9,853,737.90/1,908.88
6. Step 6: Final answer
   x = 5,162.06