Finding the Third Proportional to 17,869.50 and 39,505.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,869.50 : 39,505.50 = 39,505.50 : x
2. Step 2: Convert to fraction form
   17,869.50/39,505.50 = 39,505.50/x
3. Step 3: Cross multiply
   17,869.50x = 39,505.50 × 39,505.50
4. Step 4: Simplify right side
   17,869.50x = 1,560,684,530.25
5. Step 5: Solve for x
   x = 1,560,684,530.25/17,869.50
6. Step 6: Final answer
   x = 87,337.90