Finding the Third Proportional to 687,882 and 1,424,364

Step by Step Solution

1. Step 1: Write the proportion equation
   687,882 : 1,424,364 = 1,424,364 : x
2. Step 2: Convert to fraction form
   687,882/1,424,364 = 1,424,364/x
3. Step 3: Cross multiply
   687,882x = 1,424,364 × 1,424,364
4. Step 4: Simplify right side
   687,882x = 2,028,812,804,496
5. Step 5: Solve for x
   x = 2,028,812,804,496/687,882
6. Step 6: Final answer
   x = 2,949,361.67