Finding the Third Proportional to 813,908 and 1,245,054

Step by Step Solution

1. Step 1: Write the proportion equation
   813,908 : 1,245,054 = 1,245,054 : x
2. Step 2: Convert to fraction form
   813,908/1,245,054 = 1,245,054/x
3. Step 3: Cross multiply
   813,908x = 1,245,054 × 1,245,054
4. Step 4: Simplify right side
   813,908x = 1,550,159,462,916
5. Step 5: Solve for x
   x = 1,550,159,462,916/813,908
6. Step 6: Final answer
   x = 1,904,588.07