Finding the Third Proportional to 18,837 and 30,109.50

Step by Step Solution

1. Step 1: Write the proportion equation
   18,837 : 30,109.50 = 30,109.50 : x
2. Step 2: Convert to fraction form
   18,837/30,109.50 = 30,109.50/x
3. Step 3: Cross multiply
   18,837x = 30,109.50 × 30,109.50
4. Step 4: Simplify right side
   18,837x = 906,581,990.25
5. Step 5: Solve for x
   x = 906,581,990.25/18,837
6. Step 6: Final answer
   x = 48,127.73