Finding the Third Proportional to 13,731.75 and 28,109.25

Step by Step Solution

1. Step 1: Write the proportion equation
   13,731.75 : 28,109.25 = 28,109.25 : x
2. Step 2: Convert to fraction form
   13,731.75/28,109.25 = 28,109.25/x
3. Step 3: Cross multiply
   13,731.75x = 28,109.25 × 28,109.25
4. Step 4: Simplify right side
   13,731.75x = 790,129,935.56
5. Step 5: Solve for x
   x = 790,129,935.56/13,731.75
6. Step 6: Final answer
   x = 57,540.37