Finding the Third Proportional to 18,984.38 and 28,454.63

Step by Step Solution

1. Step 1: Write the proportion equation
   18,984.38 : 28,454.63 = 28,454.63 : x
2. Step 2: Convert to fraction form
   18,984.38/28,454.63 = 28,454.63/x
3. Step 3: Cross multiply
   18,984.38x = 28,454.63 × 28,454.63
4. Step 4: Simplify right side
   18,984.38x = 809,665,683.89
5. Step 5: Solve for x
   x = 809,665,683.89/18,984.38
6. Step 6: Final answer
   x = 42,649.06