Finding the Third Proportional to 18,630 and 28,185.50

Step by Step Solution

1. Step 1: Write the proportion equation
   18,630 : 28,185.50 = 28,185.50 : x
2. Step 2: Convert to fraction form
   18,630/28,185.50 = 28,185.50/x
3. Step 3: Cross multiply
   18,630x = 28,185.50 × 28,185.50
4. Step 4: Simplify right side
   18,630x = 794,422,410.25
5. Step 5: Solve for x
   x = 794,422,410.25/18,630
6. Step 6: Final answer
   x = 42,642.10