Finding the Third Proportional to 42,618 and 61,253

Step by Step Solution

1. Step 1: Write the proportion equation
   42,618 : 61,253 = 61,253 : x
2. Step 2: Convert to fraction form
   42,618/61,253 = 61,253/x
3. Step 3: Cross multiply
   42,618x = 61,253 × 61,253
4. Step 4: Simplify right side
   42,618x = 3,751,930,009
5. Step 5: Solve for x
   x = 3,751,930,009/42,618
6. Step 6: Final answer
   x = 88,036.28