Finding the Third Proportional to 17,871.89 and 38,856.27

Step by Step Solution

1. Step 1: Write the proportion equation
   17,871.89 : 38,856.27 = 38,856.27 : x
2. Step 2: Convert to fraction form
   17,871.89/38,856.27 = 38,856.27/x
3. Step 3: Cross multiply
   17,871.89x = 38,856.27 × 38,856.27
4. Step 4: Simplify right side
   17,871.89x = 1,509,809,681.89
5. Step 5: Solve for x
   x = 1,509,809,681.89/17,871.89
6. Step 6: Final answer
   x = 84,479.57