Finding the Third Proportional to 444,879 and 921,316.50

Step by Step Solution

1. Step 1: Write the proportion equation
   444,879 : 921,316.50 = 921,316.50 : x
2. Step 2: Convert to fraction form
   444,879/921,316.50 = 921,316.50/x
3. Step 3: Cross multiply
   444,879x = 921,316.50 × 921,316.50
4. Step 4: Simplify right side
   444,879x = 848,824,093,172.25
5. Step 5: Solve for x
   x = 848,824,093,172.25/444,879
6. Step 6: Final answer
   x = 1,907,988.67