Finding the Third Proportional to 554,113 and 1,211,906

Step by Step Solution

1. Step 1: Write the proportion equation
   554,113 : 1,211,906 = 1,211,906 : x
2. Step 2: Convert to fraction form
   554,113/1,211,906 = 1,211,906/x
3. Step 3: Cross multiply
   554,113x = 1,211,906 × 1,211,906
4. Step 4: Simplify right side
   554,113x = 1,468,716,152,836
5. Step 5: Solve for x
   x = 1,468,716,152,836/554,113
6. Step 6: Final answer
   x = 2,650,571.55