Finding the Third Proportional to 1,378,724 and 2,069,545

Step by Step Solution

1. Step 1: Write the proportion equation
   1,378,724 : 2,069,545 = 2,069,545 : x
2. Step 2: Convert to fraction form
   1,378,724/2,069,545 = 2,069,545/x
3. Step 3: Cross multiply
   1,378,724x = 2,069,545 × 2,069,545
4. Step 4: Simplify right side
   1,378,724x = 4,283,016,507,025
5. Step 5: Solve for x
   x = 4,283,016,507,025/1,378,724
6. Step 6: Final answer
   x = 3,106,507.54