Finding the Third Proportional to 362,636 and 789,790

Step by Step Solution

1. Step 1: Write the proportion equation
   362,636 : 789,790 = 789,790 : x
2. Step 2: Convert to fraction form
   362,636/789,790 = 789,790/x
3. Step 3: Cross multiply
   362,636x = 789,790 × 789,790
4. Step 4: Simplify right side
   362,636x = 623,768,244,100
5. Step 5: Solve for x
   x = 623,768,244,100/362,636
6. Step 6: Final answer
   x = 1,720,094.65