Finding the Third Proportional to 13,813.88 and 21,427.88

Step by Step Solution

1. Step 1: Write the proportion equation
   13,813.88 : 21,427.88 = 21,427.88 : x
2. Step 2: Convert to fraction form
   13,813.88/21,427.88 = 21,427.88/x
3. Step 3: Cross multiply
   13,813.88x = 21,427.88 × 21,427.88
4. Step 4: Simplify right side
   13,813.88x = 459,153,827.02
5. Step 5: Solve for x
   x = 459,153,827.02/13,813.88
6. Step 6: Final answer
   x = 33,238.60