Finding the Third Proportional to 12,634 and 18,490.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,634 : 18,490.50 = 18,490.50 : x
2. Step 2: Convert to fraction form
   12,634/18,490.50 = 18,490.50/x
3. Step 3: Cross multiply
   12,634x = 18,490.50 × 18,490.50
4. Step 4: Simplify right side
   12,634x = 341,898,590.25
5. Step 5: Solve for x
   x = 341,898,590.25/12,634
6. Step 6: Final answer
   x = 27,061.78