Finding the Third Proportional to 16,051.88 and 21,299.06

Step by Step Solution

1. Step 1: Write the proportion equation
   16,051.88 : 21,299.06 = 21,299.06 : x
2. Step 2: Convert to fraction form
   16,051.88/21,299.06 = 21,299.06/x
3. Step 3: Cross multiply
   16,051.88x = 21,299.06 × 21,299.06
4. Step 4: Simplify right side
   16,051.88x = 453,650,063.38
5. Step 5: Solve for x
   x = 453,650,063.38/16,051.88
6. Step 6: Final answer
   x = 28,261.50