Finding the Third Proportional to 3,931 and 5,588.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,931 : 5,588.50 = 5,588.50 : x
2. Step 2: Convert to fraction form
   3,931/5,588.50 = 5,588.50/x
3. Step 3: Cross multiply
   3,931x = 5,588.50 × 5,588.50
4. Step 4: Simplify right side
   3,931x = 31,231,332.25
5. Step 5: Solve for x
   x = 31,231,332.25/3,931
6. Step 6: Final answer
   x = 7,944.88