Finding the Third Proportional to 589,168 and 921,666

Step by Step Solution

1. Step 1: Write the proportion equation
   589,168 : 921,666 = 921,666 : x
2. Step 2: Convert to fraction form
   589,168/921,666 = 921,666/x
3. Step 3: Cross multiply
   589,168x = 921,666 × 921,666
4. Step 4: Simplify right side
   589,168x = 849,468,215,556
5. Step 5: Solve for x
   x = 849,468,215,556/589,168
6. Step 6: Final answer
   x = 1,441,809.83