Finding the Third Proportional to 3,608.30 and 7,820.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,608.30 : 7,820.30 = 7,820.30 : x
2. Step 2: Convert to fraction form
   3,608.30/7,820.30 = 7,820.30/x
3. Step 3: Cross multiply
   3,608.30x = 7,820.30 × 7,820.30
4. Step 4: Simplify right side
   3,608.30x = 61,157,043.21
5. Step 5: Solve for x
   x = 61,157,043.21/3,608.30
6. Step 6: Final answer
   x = 16,949.01