Finding the Third Proportional to 19,618 and 42,979

Step by Step Solution

1. Step 1: Write the proportion equation
   19,618 : 42,979 = 42,979 : x
2. Step 2: Convert to fraction form
   19,618/42,979 = 42,979/x
3. Step 3: Cross multiply
   19,618x = 42,979 × 42,979
4. Step 4: Simplify right side
   19,618x = 1,847,194,441
5. Step 5: Solve for x
   x = 1,847,194,441/19,618
6. Step 6: Final answer
   x = 94,158.14