Finding the Third Proportional to 284,115 and 612,510

Step by Step Solution

1. Step 1: Write the proportion equation
   284,115 : 612,510 = 612,510 : x
2. Step 2: Convert to fraction form
   284,115/612,510 = 612,510/x
3. Step 3: Cross multiply
   284,115x = 612,510 × 612,510
4. Step 4: Simplify right side
   284,115x = 375,168,500,100
5. Step 5: Solve for x
   x = 375,168,500,100/284,115
6. Step 6: Final answer
   x = 1,320,481.14