Finding the Third Proportional to 15,703.88 and 21,227.06

Step by Step Solution

1. Step 1: Write the proportion equation
   15,703.88 : 21,227.06 = 21,227.06 : x
2. Step 2: Convert to fraction form
   15,703.88/21,227.06 = 21,227.06/x
3. Step 3: Cross multiply
   15,703.88x = 21,227.06 × 21,227.06
4. Step 4: Simplify right side
   15,703.88x = 450,588,182.38
5. Step 5: Solve for x
   x = 450,588,182.38/15,703.88
6. Step 6: Final answer
   x = 28,692.80