Finding the Third Proportional to 128,732.06 and 269,227.69

Step by Step Solution

1. Step 1: Write the proportion equation
   128,732.06 : 269,227.69 = 269,227.69 : x
2. Step 2: Convert to fraction form
   128,732.06/269,227.69 = 269,227.69/x
3. Step 3: Cross multiply
   128,732.06x = 269,227.69 × 269,227.69
4. Step 4: Simplify right side
   128,732.06x = 72,483,547,716.60
5. Step 5: Solve for x
   x = 72,483,547,716.60/128,732.06
6. Step 6: Final answer
   x = 563,057.46