Finding the Third Proportional to 18,450.38 and 38,213.63

Step by Step Solution

1. Step 1: Write the proportion equation
   18,450.38 : 38,213.63 = 38,213.63 : x
2. Step 2: Convert to fraction form
   18,450.38/38,213.63 = 38,213.63/x
3. Step 3: Cross multiply
   18,450.38x = 38,213.63 × 38,213.63
4. Step 4: Simplify right side
   18,450.38x = 1,460,281,135.64
5. Step 5: Solve for x
   x = 1,460,281,135.64/18,450.38
6. Step 6: Final answer
   x = 79,146.42