Finding the Third Proportional to 1,187,172 and 2,799,618

Step by Step Solution

1. Step 1: Write the proportion equation
   1,187,172 : 2,799,618 = 2,799,618 : x
2. Step 2: Convert to fraction form
   1,187,172/2,799,618 = 2,799,618/x
3. Step 3: Cross multiply
   1,187,172x = 2,799,618 × 2,799,618
4. Step 4: Simplify right side
   1,187,172x = 7,837,860,945,924
5. Step 5: Solve for x
   x = 7,837,860,945,924/1,187,172
6. Step 6: Final answer
   x = 6,602,127.53