Finding the Third Proportional to 136,078.50 and 288,357

Step by Step Solution

1. Step 1: Write the proportion equation
   136,078.50 : 288,357 = 288,357 : x
2. Step 2: Convert to fraction form
   136,078.50/288,357 = 288,357/x
3. Step 3: Cross multiply
   136,078.50x = 288,357 × 288,357
4. Step 4: Simplify right side
   136,078.50x = 83,149,759,449
5. Step 5: Solve for x
   x = 83,149,759,449/136,078.50
6. Step 6: Final answer
   x = 611,042.59