Finding the Third Proportional to 13,339 and 30,917.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,339 : 30,917.50 = 30,917.50 : x
2. Step 2: Convert to fraction form
   13,339/30,917.50 = 30,917.50/x
3. Step 3: Cross multiply
   13,339x = 30,917.50 × 30,917.50
4. Step 4: Simplify right side
   13,339x = 955,891,806.25
5. Step 5: Solve for x
   x = 955,891,806.25/13,339
6. Step 6: Final answer
   x = 71,661.43