Finding the Third Proportional to 15,339 and 33,409.50

Step by Step Solution

1. Step 1: Write the proportion equation
   15,339 : 33,409.50 = 33,409.50 : x
2. Step 2: Convert to fraction form
   15,339/33,409.50 = 33,409.50/x
3. Step 3: Cross multiply
   15,339x = 33,409.50 × 33,409.50
4. Step 4: Simplify right side
   15,339x = 1,116,194,690.25
5. Step 5: Solve for x
   x = 1,116,194,690.25/15,339
6. Step 6: Final answer
   x = 72,768.41