Finding the Third Proportional to 234,380 and 485,368

Step by Step Solution

1. Step 1: Write the proportion equation
   234,380 : 485,368 = 485,368 : x
2. Step 2: Convert to fraction form
   234,380/485,368 = 485,368/x
3. Step 3: Cross multiply
   234,380x = 485,368 × 485,368
4. Step 4: Simplify right side
   234,380x = 235,582,095,424
5. Step 5: Solve for x
   x = 235,582,095,424/234,380
6. Step 6: Final answer
   x = 1,005,128.83