Finding the Third Proportional to 3,608.50 and 7,820.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,608.50 : 7,820.88 = 7,820.88 : x
2. Step 2: Convert to fraction form
   3,608.50/7,820.88 = 7,820.88/x
3. Step 3: Cross multiply
   3,608.50x = 7,820.88 × 7,820.88
4. Step 4: Simplify right side
   3,608.50x = 61,166,085.77
5. Step 5: Solve for x
   x = 61,166,085.77/3,608.50
6. Step 6: Final answer
   x = 16,950.56