Finding the Third Proportional to 1,217,618 and 1,939,179

Step by Step Solution

1. Step 1: Write the proportion equation
   1,217,618 : 1,939,179 = 1,939,179 : x
2. Step 2: Convert to fraction form
   1,217,618/1,939,179 = 1,939,179/x
3. Step 3: Cross multiply
   1,217,618x = 1,939,179 × 1,939,179
4. Step 4: Simplify right side
   1,217,618x = 3,760,415,194,041
5. Step 5: Solve for x
   x = 3,760,415,194,041/1,217,618
6. Step 6: Final answer
   x = 3,088,337.39