Finding the Third Proportional to 13,381 and 30,986.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,381 : 30,986.50 = 30,986.50 : x
2. Step 2: Convert to fraction form
   13,381/30,986.50 = 30,986.50/x
3. Step 3: Cross multiply
   13,381x = 30,986.50 × 30,986.50
4. Step 4: Simplify right side
   13,381x = 960,163,182.25
5. Step 5: Solve for x
   x = 960,163,182.25/13,381
6. Step 6: Final answer
   x = 71,755.71