Finding the Third Proportional to 18,703.50 and 31,169.25

Step by Step Solution

1. Step 1: Write the proportion equation
   18,703.50 : 31,169.25 = 31,169.25 : x
2. Step 2: Convert to fraction form
   18,703.50/31,169.25 = 31,169.25/x
3. Step 3: Cross multiply
   18,703.50x = 31,169.25 × 31,169.25
4. Step 4: Simplify right side
   18,703.50x = 971,522,145.56
5. Step 5: Solve for x
   x = 971,522,145.56/18,703.50
6. Step 6: Final answer
   x = 51,943.33