Finding the Third Proportional to 1,378,739 and 2,069,566

Step by Step Solution

1. Step 1: Write the proportion equation
   1,378,739 : 2,069,566 = 2,069,566 : x
2. Step 2: Convert to fraction form
   1,378,739/2,069,566 = 2,069,566/x
3. Step 3: Cross multiply
   1,378,739x = 2,069,566 × 2,069,566
4. Step 4: Simplify right side
   1,378,739x = 4,283,103,428,356
5. Step 5: Solve for x
   x = 4,283,103,428,356/1,378,739
6. Step 6: Final answer
   x = 3,106,536.79