Finding the Third Proportional to 18,499.50 and 39,953.25

Step by Step Solution

1. Step 1: Write the proportion equation
   18,499.50 : 39,953.25 = 39,953.25 : x
2. Step 2: Convert to fraction form
   18,499.50/39,953.25 = 39,953.25/x
3. Step 3: Cross multiply
   18,499.50x = 39,953.25 × 39,953.25
4. Step 4: Simplify right side
   18,499.50x = 1,596,262,185.56
5. Step 5: Solve for x
   x = 1,596,262,185.56/18,499.50
6. Step 6: Final answer
   x = 86,286.77