Finding the Third Proportional to 4,157.58 and 9,085.92

Step by Step Solution

1. Step 1: Write the proportion equation
   4,157.58 : 9,085.92 = 9,085.92 : x
2. Step 2: Convert to fraction form
   4,157.58/9,085.92 = 9,085.92/x
3. Step 3: Cross multiply
   4,157.58x = 9,085.92 × 9,085.92
4. Step 4: Simplify right side
   4,157.58x = 82,553,976.32
5. Step 5: Solve for x
   x = 82,553,976.32/4,157.58
6. Step 6: Final answer
   x = 19,856.27