Finding the Third Proportional to 157,919 and 242,978

Step by Step Solution

1. Step 1: Write the proportion equation
   157,919 : 242,978 = 242,978 : x
2. Step 2: Convert to fraction form
   157,919/242,978 = 242,978/x
3. Step 3: Cross multiply
   157,919x = 242,978 × 242,978
4. Step 4: Simplify right side
   157,919x = 59,038,308,484
5. Step 5: Solve for x
   x = 59,038,308,484/157,919
6. Step 6: Final answer
   x = 373,851.84