Finding the Third Proportional to 17,818.88 and 39,211.88

Step by Step Solution

1. Step 1: Write the proportion equation
   17,818.88 : 39,211.88 = 39,211.88 : x
2. Step 2: Convert to fraction form
   17,818.88/39,211.88 = 39,211.88/x
3. Step 3: Cross multiply
   17,818.88x = 39,211.88 × 39,211.88
4. Step 4: Simplify right side
   17,818.88x = 1,537,571,141.02
5. Step 5: Solve for x
   x = 1,537,571,141.02/17,818.88
6. Step 6: Final answer
   x = 86,288.90