Finding the Third Proportional to 368,392 and 789,056

Step by Step Solution

1. Step 1: Write the proportion equation
   368,392 : 789,056 = 789,056 : x
2. Step 2: Convert to fraction form
   368,392/789,056 = 789,056/x
3. Step 3: Cross multiply
   368,392x = 789,056 × 789,056
4. Step 4: Simplify right side
   368,392x = 622,609,371,136
5. Step 5: Solve for x
   x = 622,609,371,136/368,392
6. Step 6: Final answer
   x = 1,690,073.00