Finding the Third Proportional to 363,730 and 789,666

Step by Step Solution

1. Step 1: Write the proportion equation
   363,730 : 789,666 = 789,666 : x
2. Step 2: Convert to fraction form
   363,730/789,666 = 789,666/x
3. Step 3: Cross multiply
   363,730x = 789,666 × 789,666
4. Step 4: Simplify right side
   363,730x = 623,572,391,556
5. Step 5: Solve for x
   x = 623,572,391,556/363,730
6. Step 6: Final answer
   x = 1,714,382.62