Finding the Third Proportional to 3,736.88 and 8,131.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,736.88 : 8,131.88 = 8,131.88 : x
2. Step 2: Convert to fraction form
   3,736.88/8,131.88 = 8,131.88/x
3. Step 3: Cross multiply
   3,736.88x = 8,131.88 × 8,131.88
4. Step 4: Simplify right side
   3,736.88x = 66,127,391.02
5. Step 5: Solve for x
   x = 66,127,391.02/3,736.88
6. Step 6: Final answer
   x = 17,695.91