Finding the Third Proportional to 117,390 and 244,508

Step by Step Solution

1. Step 1: Write the proportion equation
   117,390 : 244,508 = 244,508 : x
2. Step 2: Convert to fraction form
   117,390/244,508 = 244,508/x
3. Step 3: Cross multiply
   117,390x = 244,508 × 244,508
4. Step 4: Simplify right side
   117,390x = 59,784,162,064
5. Step 5: Solve for x
   x = 59,784,162,064/117,390
6. Step 6: Final answer
   x = 509,278.15