Finding the Third Proportional to 12,339 and 20,047.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,339 : 20,047.50 = 20,047.50 : x
2. Step 2: Convert to fraction form
   12,339/20,047.50 = 20,047.50/x
3. Step 3: Cross multiply
   12,339x = 20,047.50 × 20,047.50
4. Step 4: Simplify right side
   12,339x = 401,902,256.25
5. Step 5: Solve for x
   x = 401,902,256.25/12,339
6. Step 6: Final answer
   x = 32,571.70