Finding the Third Proportional to 687,884 and 1,424,368

Step by Step Solution

1. Step 1: Write the proportion equation
   687,884 : 1,424,368 = 1,424,368 : x
2. Step 2: Convert to fraction form
   687,884/1,424,368 = 1,424,368/x
3. Step 3: Cross multiply
   687,884x = 1,424,368 × 1,424,368
4. Step 4: Simplify right side
   687,884x = 2,028,824,199,424
5. Step 5: Solve for x
   x = 2,028,824,199,424/687,884
6. Step 6: Final answer
   x = 2,949,369.66