Finding the Third Proportional to 245,768 and 535,240

Step by Step Solution

1. Step 1: Write the proportion equation
   245,768 : 535,240 = 535,240 : x
2. Step 2: Convert to fraction form
   245,768/535,240 = 535,240/x
3. Step 3: Cross multiply
   245,768x = 535,240 × 535,240
4. Step 4: Simplify right side
   245,768x = 286,481,857,600
5. Step 5: Solve for x
   x = 286,481,857,600/245,768
6. Step 6: Final answer
   x = 1,165,659.72