Finding the Third Proportional to 13,630.50 and 21,189

Step by Step Solution

1. Step 1: Write the proportion equation
   13,630.50 : 21,189 = 21,189 : x
2. Step 2: Convert to fraction form
   13,630.50/21,189 = 21,189/x
3. Step 3: Cross multiply
   13,630.50x = 21,189 × 21,189
4. Step 4: Simplify right side
   13,630.50x = 448,973,721
5. Step 5: Solve for x
   x = 448,973,721/13,630.50
6. Step 6: Final answer
   x = 32,938.90