Finding the Third Proportional to 45,618 and 70,605

Step by Step Solution

1. Step 1: Write the proportion equation
   45,618 : 70,605 = 70,605 : x
2. Step 2: Convert to fraction form
   45,618/70,605 = 70,605/x
3. Step 3: Cross multiply
   45,618x = 70,605 × 70,605
4. Step 4: Simplify right side
   45,618x = 4,985,066,025
5. Step 5: Solve for x
   x = 4,985,066,025/45,618
6. Step 6: Final answer
   x = 109,278.49