Finding the Third Proportional to 13,492 and 20,190.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,492 : 20,190.50 = 20,190.50 : x
2. Step 2: Convert to fraction form
   13,492/20,190.50 = 20,190.50/x
3. Step 3: Cross multiply
   13,492x = 20,190.50 × 20,190.50
4. Step 4: Simplify right side
   13,492x = 407,656,290.25
5. Step 5: Solve for x
   x = 407,656,290.25/13,492
6. Step 6: Final answer
   x = 30,214.67