Finding the Third Proportional to 13,338 and 20,938.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,338 : 20,938.50 = 20,938.50 : x
2. Step 2: Convert to fraction form
   13,338/20,938.50 = 20,938.50/x
3. Step 3: Cross multiply
   13,338x = 20,938.50 × 20,938.50
4. Step 4: Simplify right side
   13,338x = 438,420,782.25
5. Step 5: Solve for x
   x = 438,420,782.25/13,338
6. Step 6: Final answer
   x = 32,870.05