Finding the Third Proportional to 242,803.50 and 495,240

Step by Step Solution

1. Step 1: Write the proportion equation
   242,803.50 : 495,240 = 495,240 : x
2. Step 2: Convert to fraction form
   242,803.50/495,240 = 495,240/x
3. Step 3: Cross multiply
   242,803.50x = 495,240 × 495,240
4. Step 4: Simplify right side
   242,803.50x = 245,262,657,600
5. Step 5: Solve for x
   x = 245,262,657,600/242,803.50
6. Step 6: Final answer
   x = 1,010,128.18