Finding the Third Proportional to 18,012.50 and 42,073

Step by Step Solution

1. Step 1: Write the proportion equation
   18,012.50 : 42,073 = 42,073 : x
2. Step 2: Convert to fraction form
   18,012.50/42,073 = 42,073/x
3. Step 3: Cross multiply
   18,012.50x = 42,073 × 42,073
4. Step 4: Simplify right side
   18,012.50x = 1,770,137,329
5. Step 5: Solve for x
   x = 1,770,137,329/18,012.50
6. Step 6: Final answer
   x = 98,272.72