Finding the Third Proportional to 118,353 and 245,442

Step by Step Solution

1. Step 1: Write the proportion equation
   118,353 : 245,442 = 245,442 : x
2. Step 2: Convert to fraction form
   118,353/245,442 = 245,442/x
3. Step 3: Cross multiply
   118,353x = 245,442 × 245,442
4. Step 4: Simplify right side
   118,353x = 60,241,775,364
5. Step 5: Solve for x
   x = 60,241,775,364/118,353
6. Step 6: Final answer
   x = 509,000.83