Finding the Third Proportional to 8,699 and 13,475.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,699 : 13,475.50 = 13,475.50 : x
2. Step 2: Convert to fraction form
   8,699/13,475.50 = 13,475.50/x
3. Step 3: Cross multiply
   8,699x = 13,475.50 × 13,475.50
4. Step 4: Simplify right side
   8,699x = 181,589,100.25
5. Step 5: Solve for x
   x = 181,589,100.25/8,699
6. Step 6: Final answer
   x = 20,874.71