Finding the Third Proportional to 12,861 and 28,060.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,861 : 28,060.50 = 28,060.50 : x
2. Step 2: Convert to fraction form
   12,861/28,060.50 = 28,060.50/x
3. Step 3: Cross multiply
   12,861x = 28,060.50 × 28,060.50
4. Step 4: Simplify right side
   12,861x = 787,391,660.25
5. Step 5: Solve for x
   x = 787,391,660.25/12,861
6. Step 6: Final answer
   x = 61,223.21