Finding the Third Proportional to 18,627.47 and 43,728.61

Step by Step Solution

1. Step 1: Write the proportion equation
   18,627.47 : 43,728.61 = 43,728.61 : x
2. Step 2: Convert to fraction form
   18,627.47/43,728.61 = 43,728.61/x
3. Step 3: Cross multiply
   18,627.47x = 43,728.61 × 43,728.61
4. Step 4: Simplify right side
   18,627.47x = 1,912,191,277.87
5. Step 5: Solve for x
   x = 1,912,191,277.87/18,627.47
6. Step 6: Final answer
   x = 102,654.38