Finding the Third Proportional to 5,911.31 and 13,005.56

Step by Step Solution

1. Step 1: Write the proportion equation
   5,911.31 : 13,005.56 = 13,005.56 : x
2. Step 2: Convert to fraction form
   5,911.31/13,005.56 = 13,005.56/x
3. Step 3: Cross multiply
   5,911.31x = 13,005.56 × 13,005.56
4. Step 4: Simplify right side
   5,911.31x = 169,144,655.94
5. Step 5: Solve for x
   x = 169,144,655.94/5,911.31
6. Step 6: Final answer
   x = 28,613.72