Finding the Third Proportional to 18,904.50 and 31,384.50

Step by Step Solution

1. Step 1: Write the proportion equation
   18,904.50 : 31,384.50 = 31,384.50 : x
2. Step 2: Convert to fraction form
   18,904.50/31,384.50 = 31,384.50/x
3. Step 3: Cross multiply
   18,904.50x = 31,384.50 × 31,384.50
4. Step 4: Simplify right side
   18,904.50x = 984,986,840.25
5. Step 5: Solve for x
   x = 984,986,840.25/18,904.50
6. Step 6: Final answer
   x = 52,103.30