Finding the Third Proportional to 17,806.50 and 42,036

Step by Step Solution

1. Step 1: Write the proportion equation
   17,806.50 : 42,036 = 42,036 : x
2. Step 2: Convert to fraction form
   17,806.50/42,036 = 42,036/x
3. Step 3: Cross multiply
   17,806.50x = 42,036 × 42,036
4. Step 4: Simplify right side
   17,806.50x = 1,767,025,296
5. Step 5: Solve for x
   x = 1,767,025,296/17,806.50
6. Step 6: Final answer
   x = 99,234.85