Finding the Third Proportional to 12,124.50 and 18,726

Step by Step Solution

1. Step 1: Write the proportion equation
   12,124.50 : 18,726 = 18,726 : x
2. Step 2: Convert to fraction form
   12,124.50/18,726 = 18,726/x
3. Step 3: Cross multiply
   12,124.50x = 18,726 × 18,726
4. Step 4: Simplify right side
   12,124.50x = 350,663,076
5. Step 5: Solve for x
   x = 350,663,076/12,124.50
6. Step 6: Final answer
   x = 28,921.86