Finding the Third Proportional to 18,453.38 and 38,219.63

Step by Step Solution

1. Step 1: Write the proportion equation
   18,453.38 : 38,219.63 = 38,219.63 : x
2. Step 2: Convert to fraction form
   18,453.38/38,219.63 = 38,219.63/x
3. Step 3: Cross multiply
   18,453.38x = 38,219.63 × 38,219.63
4. Step 4: Simplify right side
   18,453.38x = 1,460,739,735.14
5. Step 5: Solve for x
   x = 1,460,739,735.14/18,453.38
6. Step 6: Final answer
   x = 79,158.41