Finding the Third Proportional to 685,154 and 1,043,907

Step by Step Solution

1. Step 1: Write the proportion equation
   685,154 : 1,043,907 = 1,043,907 : x
2. Step 2: Convert to fraction form
   685,154/1,043,907 = 1,043,907/x
3. Step 3: Cross multiply
   685,154x = 1,043,907 × 1,043,907
4. Step 4: Simplify right side
   685,154x = 1,089,741,824,649
5. Step 5: Solve for x
   x = 1,089,741,824,649/685,154
6. Step 6: Final answer
   x = 1,590,506.40