Finding the Third Proportional to 128,088 and 205,797.38

Step by Step Solution

1. Step 1: Write the proportion equation
   128,088 : 205,797.38 = 205,797.38 : x
2. Step 2: Convert to fraction form
   128,088/205,797.38 = 205,797.38/x
3. Step 3: Cross multiply
   128,088x = 205,797.38 × 205,797.38
4. Step 4: Simplify right side
   128,088x = 42,352,559,556.89
5. Step 5: Solve for x
   x = 42,352,559,556.89/128,088
6. Step 6: Final answer
   x = 330,652.05