Finding the Third Proportional to 1,310,618 and 1,977,969

Step by Step Solution

1. Step 1: Write the proportion equation
   1,310,618 : 1,977,969 = 1,977,969 : x
2. Step 2: Convert to fraction form
   1,310,618/1,977,969 = 1,977,969/x
3. Step 3: Cross multiply
   1,310,618x = 1,977,969 × 1,977,969
4. Step 4: Simplify right side
   1,310,618x = 3,912,361,364,961
5. Step 5: Solve for x
   x = 3,912,361,364,961/1,310,618
6. Step 6: Final answer
   x = 2,985,127.14