Finding the Third Proportional to 300,696 and 660,912

Step by Step Solution

1. Step 1: Write the proportion equation
   300,696 : 660,912 = 660,912 : x
2. Step 2: Convert to fraction form
   300,696/660,912 = 660,912/x
3. Step 3: Cross multiply
   300,696x = 660,912 × 660,912
4. Step 4: Simplify right side
   300,696x = 436,804,671,744
5. Step 5: Solve for x
   x = 436,804,671,744/300,696
6. Step 6: Final answer
   x = 1,452,645.44