Finding the Third Proportional to 807,905 and 1,228,644

Step by Step Solution

1. Step 1: Write the proportion equation
   807,905 : 1,228,644 = 1,228,644 : x
2. Step 2: Convert to fraction form
   807,905/1,228,644 = 1,228,644/x
3. Step 3: Cross multiply
   807,905x = 1,228,644 × 1,228,644
4. Step 4: Simplify right side
   807,905x = 1,509,566,078,736
5. Step 5: Solve for x
   x = 1,509,566,078,736/807,905
6. Step 6: Final answer
   x = 1,868,494.54