Finding the Third Proportional to 13,501.69 and 20,670.19

Step by Step Solution

1. Step 1: Write the proportion equation
   13,501.69 : 20,670.19 = 20,670.19 : x
2. Step 2: Convert to fraction form
   13,501.69/20,670.19 = 20,670.19/x
3. Step 3: Cross multiply
   13,501.69x = 20,670.19 × 20,670.19
4. Step 4: Simplify right side
   13,501.69x = 427,256,651.29
5. Step 5: Solve for x
   x = 427,256,651.29/13,501.69
6. Step 6: Final answer
   x = 31,644.69