Finding the Third Proportional to 13,292 and 20,403.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,292 : 20,403.50 = 20,403.50 : x
2. Step 2: Convert to fraction form
   13,292/20,403.50 = 20,403.50/x
3. Step 3: Cross multiply
   13,292x = 20,403.50 × 20,403.50
4. Step 4: Simplify right side
   13,292x = 416,302,812.25
5. Step 5: Solve for x
   x = 416,302,812.25/13,292
6. Step 6: Final answer
   x = 31,319.80