Finding the Third Proportional to 368,694,584 and 789,978,414

Step by Step Solution

1. Step 1: Write the proportion equation
   368,694,584 : 789,978,414 = 789,978,414 : x
2. Step 2: Convert to fraction form
   368,694,584/789,978,414 = 789,978,414/x
3. Step 3: Cross multiply
   368,694,584x = 789,978,414 × 789,978,414
4. Step 4: Simplify right side
   368,694,584x = 624,065,894,585,955,456
5. Step 5: Solve for x
   x = 624,065,894,585,955,456/368,694,584
6. Step 6: Final answer
   x = 1,692,636,457.57