Finding the Third Proportional to 13,881.38 and 21,672.56

Step by Step Solution

1. Step 1: Write the proportion equation
   13,881.38 : 21,672.56 = 21,672.56 : x
2. Step 2: Convert to fraction form
   13,881.38/21,672.56 = 21,672.56/x
3. Step 3: Cross multiply
   13,881.38x = 21,672.56 × 21,672.56
4. Step 4: Simplify right side
   13,881.38x = 469,699,965.32
5. Step 5: Solve for x
   x = 469,699,965.32/13,881.38
6. Step 6: Final answer
   x = 33,836.70