Finding the Third Proportional to 1,985.25 and 4,031.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,985.25 : 4,031.25 = 4,031.25 : x
2. Step 2: Convert to fraction form
   1,985.25/4,031.25 = 4,031.25/x
3. Step 3: Cross multiply
   1,985.25x = 4,031.25 × 4,031.25
4. Step 4: Simplify right side
   1,985.25x = 16,250,976.56
5. Step 5: Solve for x
   x = 16,250,976.56/1,985.25
6. Step 6: Final answer
   x = 8,185.86