Finding the Third Proportional to 103,780 and 158,718

Step by Step Solution

1. Step 1: Write the proportion equation
   103,780 : 158,718 = 158,718 : x
2. Step 2: Convert to fraction form
   103,780/158,718 = 158,718/x
3. Step 3: Cross multiply
   103,780x = 158,718 × 158,718
4. Step 4: Simplify right side
   103,780x = 25,191,403,524
5. Step 5: Solve for x
   x = 25,191,403,524/103,780
6. Step 6: Final answer
   x = 242,738.52