Finding the Third Proportional to 13,611.38 and 21,029.63

Step by Step Solution

1. Step 1: Write the proportion equation
   13,611.38 : 21,029.63 = 21,029.63 : x
2. Step 2: Convert to fraction form
   13,611.38/21,029.63 = 21,029.63/x
3. Step 3: Cross multiply
   13,611.38x = 21,029.63 × 21,029.63
4. Step 4: Simplify right side
   13,611.38x = 442,245,127.64
5. Step 5: Solve for x
   x = 442,245,127.64/13,611.38
6. Step 6: Final answer
   x = 32,490.85