Finding the Third Proportional to 554,399 and 1,191,618

Step by Step Solution

1. Step 1: Write the proportion equation
   554,399 : 1,191,618 = 1,191,618 : x
2. Step 2: Convert to fraction form
   554,399/1,191,618 = 1,191,618/x
3. Step 3: Cross multiply
   554,399x = 1,191,618 × 1,191,618
4. Step 4: Simplify right side
   554,399x = 1,419,953,457,924
5. Step 5: Solve for x
   x = 1,419,953,457,924/554,399
6. Step 6: Final answer
   x = 2,561,248.23