Finding the Third Proportional to 13,590 and 21,003.75

Step by Step Solution

1. Step 1: Write the proportion equation
   13,590 : 21,003.75 = 21,003.75 : x
2. Step 2: Convert to fraction form
   13,590/21,003.75 = 21,003.75/x
3. Step 3: Cross multiply
   13,590x = 21,003.75 × 21,003.75
4. Step 4: Simplify right side
   13,590x = 441,157,514.06
5. Step 5: Solve for x
   x = 441,157,514.06/13,590
6. Step 6: Final answer
   x = 32,461.92