Finding the Third Proportional to 42,060 and 61,618

Step by Step Solution

1. Step 1: Write the proportion equation
   42,060 : 61,618 = 61,618 : x
2. Step 2: Convert to fraction form
   42,060/61,618 = 61,618/x
3. Step 3: Cross multiply
   42,060x = 61,618 × 61,618
4. Step 4: Simplify right side
   42,060x = 3,796,777,924
5. Step 5: Solve for x
   x = 3,796,777,924/42,060
6. Step 6: Final answer
   x = 90,270.52