Finding the Third Proportional to 13,867.88 and 20,435.63

Step by Step Solution

1. Step 1: Write the proportion equation
   13,867.88 : 20,435.63 = 20,435.63 : x
2. Step 2: Convert to fraction form
   13,867.88/20,435.63 = 20,435.63/x
3. Step 3: Cross multiply
   13,867.88x = 20,435.63 × 20,435.63
4. Step 4: Simplify right side
   13,867.88x = 417,614,769.14
5. Step 5: Solve for x
   x = 417,614,769.14/13,867.88
6. Step 6: Final answer
   x = 30,113.83