Finding the Third Proportional to 60,666 and 131,638.50

Step by Step Solution

1. Step 1: Write the proportion equation
   60,666 : 131,638.50 = 131,638.50 : x
2. Step 2: Convert to fraction form
   60,666/131,638.50 = 131,638.50/x
3. Step 3: Cross multiply
   60,666x = 131,638.50 × 131,638.50
4. Step 4: Simplify right side
   60,666x = 17,328,694,682.25
5. Step 5: Solve for x
   x = 17,328,694,682.25/60,666
6. Step 6: Final answer
   x = 285,640.96