Finding the Third Proportional to 29,618 and 63,978

Step by Step Solution

1. Step 1: Write the proportion equation
   29,618 : 63,978 = 63,978 : x
2. Step 2: Convert to fraction form
   29,618/63,978 = 63,978/x
3. Step 3: Cross multiply
   29,618x = 63,978 × 63,978
4. Step 4: Simplify right side
   29,618x = 4,093,184,484
5. Step 5: Solve for x
   x = 4,093,184,484/29,618
6. Step 6: Final answer
   x = 138,199.22