Finding the Third Proportional to 18,339.75 and 39,776.06

Step by Step Solution

1. Step 1: Write the proportion equation
   18,339.75 : 39,776.06 = 39,776.06 : x
2. Step 2: Convert to fraction form
   18,339.75/39,776.06 = 39,776.06/x
3. Step 3: Cross multiply
   18,339.75x = 39,776.06 × 39,776.06
4. Step 4: Simplify right side
   18,339.75x = 1,582,135,148.00
5. Step 5: Solve for x
   x = 1,582,135,148.00/18,339.75
6. Step 6: Final answer
   x = 86,268.09