Finding the Third Proportional to 13,447.13 and 20,737.69

Step by Step Solution

1. Step 1: Write the proportion equation
   13,447.13 : 20,737.69 = 20,737.69 : x
2. Step 2: Convert to fraction form
   13,447.13/20,737.69 = 20,737.69/x
3. Step 3: Cross multiply
   13,447.13x = 20,737.69 × 20,737.69
4. Step 4: Simplify right side
   13,447.13x = 430,051,682.85
5. Step 5: Solve for x
   x = 430,051,682.85/13,447.13
6. Step 6: Final answer
   x = 31,980.94