Finding the Third Proportional to 1,069,728 and 2,349,420

Step by Step Solution

1. Step 1: Write the proportion equation
   1,069,728 : 2,349,420 = 2,349,420 : x
2. Step 2: Convert to fraction form
   1,069,728/2,349,420 = 2,349,420/x
3. Step 3: Cross multiply
   1,069,728x = 2,349,420 × 2,349,420
4. Step 4: Simplify right side
   1,069,728x = 5,519,774,336,400
5. Step 5: Solve for x
   x = 5,519,774,336,400/1,069,728
6. Step 6: Final answer
   x = 5,159,979.30