Finding the Third Proportional to 103,618 and 154,789

Step by Step Solution

1. Step 1: Write the proportion equation
   103,618 : 154,789 = 154,789 : x
2. Step 2: Convert to fraction form
   103,618/154,789 = 154,789/x
3. Step 3: Cross multiply
   103,618x = 154,789 × 154,789
4. Step 4: Simplify right side
   103,618x = 23,959,634,521
5. Step 5: Solve for x
   x = 23,959,634,521/103,618
6. Step 6: Final answer
   x = 231,230.43