Finding the Third Proportional to 109,618 and 164,428

Step by Step Solution

1. Step 1: Write the proportion equation
   109,618 : 164,428 = 164,428 : x
2. Step 2: Convert to fraction form
   109,618/164,428 = 164,428/x
3. Step 3: Cross multiply
   109,618x = 164,428 × 164,428
4. Step 4: Simplify right side
   109,618x = 27,036,567,184
5. Step 5: Solve for x
   x = 27,036,567,184/109,618
6. Step 6: Final answer
   x = 246,643.50