Finding the Third Proportional to 1,378,980 and 2,069,982

Step by Step Solution

1. Step 1: Write the proportion equation
   1,378,980 : 2,069,982 = 2,069,982 : x
2. Step 2: Convert to fraction form
   1,378,980/2,069,982 = 2,069,982/x
3. Step 3: Cross multiply
   1,378,980x = 2,069,982 × 2,069,982
4. Step 4: Simplify right side
   1,378,980x = 4,284,825,480,324
5. Step 5: Solve for x
   x = 4,284,825,480,324/1,378,980
6. Step 6: Final answer
   x = 3,107,242.66