Finding the Third Proportional to 362,704.50 and 789,642

Step by Step Solution

1. Step 1: Write the proportion equation
   362,704.50 : 789,642 = 789,642 : x
2. Step 2: Convert to fraction form
   362,704.50/789,642 = 789,642/x
3. Step 3: Cross multiply
   362,704.50x = 789,642 × 789,642
4. Step 4: Simplify right side
   362,704.50x = 623,534,488,164
5. Step 5: Solve for x
   x = 623,534,488,164/362,704.50
6. Step 6: Final answer
   x = 1,719,125.32