Finding the Third Proportional to 2,131.31 and 5,054.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131.31 : 5,054.06 = 5,054.06 : x
2. Step 2: Convert to fraction form
   2,131.31/5,054.06 = 5,054.06/x
3. Step 3: Cross multiply
   2,131.31x = 5,054.06 × 5,054.06
4. Step 4: Simplify right side
   2,131.31x = 25,543,547.75
5. Step 5: Solve for x
   x = 25,543,547.75/2,131.31
6. Step 6: Final answer
   x = 11,984.89