Finding the Third Proportional to 162,378 and 242,907

Step by Step Solution

1. Step 1: Write the proportion equation
   162,378 : 242,907 = 242,907 : x
2. Step 2: Convert to fraction form
   162,378/242,907 = 242,907/x
3. Step 3: Cross multiply
   162,378x = 242,907 × 242,907
4. Step 4: Simplify right side
   162,378x = 59,003,810,649
5. Step 5: Solve for x
   x = 59,003,810,649/162,378
6. Step 6: Final answer
   x = 363,373.18