Finding the Third Proportional to 128,533.50 and 205,254

Step by Step Solution

1. Step 1: Write the proportion equation
   128,533.50 : 205,254 = 205,254 : x
2. Step 2: Convert to fraction form
   128,533.50/205,254 = 205,254/x
3. Step 3: Cross multiply
   128,533.50x = 205,254 × 205,254
4. Step 4: Simplify right side
   128,533.50x = 42,129,204,516
5. Step 5: Solve for x
   x = 42,129,204,516/128,533.50
6. Step 6: Final answer
   x = 327,768.28