Finding the Third Proportional to 6,046.31 and 13,128.75

Step by Step Solution

1. Step 1: Write the proportion equation
   6,046.31 : 13,128.75 = 13,128.75 : x
2. Step 2: Convert to fraction form
   6,046.31/13,128.75 = 13,128.75/x
3. Step 3: Cross multiply
   6,046.31x = 13,128.75 × 13,128.75
4. Step 4: Simplify right side
   6,046.31x = 172,364,076.56
5. Step 5: Solve for x
   x = 172,364,076.56/6,046.31
6. Step 6: Final answer
   x = 28,507.31