Finding the Third Proportional to 12,572.30 and 18,641.39

Step by Step Solution

1. Step 1: Write the proportion equation
   12,572.30 : 18,641.39 = 18,641.39 : x
2. Step 2: Convert to fraction form
   12,572.30/18,641.39 = 18,641.39/x
3. Step 3: Cross multiply
   12,572.30x = 18,641.39 × 18,641.39
4. Step 4: Simplify right side
   12,572.30x = 347,501,444.43
5. Step 5: Solve for x
   x = 347,501,444.43/12,572.30
6. Step 6: Final answer
   x = 27,640.25