Finding the Third Proportional to 1,223,644 and 2,624,378

Step by Step Solution

1. Step 1: Write the proportion equation
   1,223,644 : 2,624,378 = 2,624,378 : x
2. Step 2: Convert to fraction form
   1,223,644/2,624,378 = 2,624,378/x
3. Step 3: Cross multiply
   1,223,644x = 2,624,378 × 2,624,378
4. Step 4: Simplify right side
   1,223,644x = 6,887,359,886,884
5. Step 5: Solve for x
   x = 6,887,359,886,884/1,223,644
6. Step 6: Final answer
   x = 5,628,565.08