Finding the Third Proportional to 5,563.69 and 8,485.88

Step by Step Solution

1. Step 1: Write the proportion equation
   5,563.69 : 8,485.88 = 8,485.88 : x
2. Step 2: Convert to fraction form
   5,563.69/8,485.88 = 8,485.88/x
3. Step 3: Cross multiply
   5,563.69x = 8,485.88 × 8,485.88
4. Step 4: Simplify right side
   5,563.69x = 72,010,074.52
5. Step 5: Solve for x
   x = 72,010,074.52/5,563.69
6. Step 6: Final answer
   x = 12,942.87