Finding the Third Proportional to 8,507.53 and 13,501.69

Step by Step Solution

1. Step 1: Write the proportion equation
   8,507.53 : 13,501.69 = 13,501.69 : x
2. Step 2: Convert to fraction form
   8,507.53/13,501.69 = 13,501.69/x
3. Step 3: Cross multiply
   8,507.53x = 13,501.69 × 13,501.69
4. Step 4: Simplify right side
   8,507.53x = 182,295,565.35
5. Step 5: Solve for x
   x = 182,295,565.35/8,507.53
6. Step 6: Final answer
   x = 21,427.55