Finding the Third Proportional to 428,936.77 and 893,400.89

Step by Step Solution

1. Step 1: Write the proportion equation
   428,936.77 : 893,400.89 = 893,400.89 : x
2. Step 2: Convert to fraction form
   428,936.77/893,400.89 = 893,400.89/x
3. Step 3: Cross multiply
   428,936.77x = 893,400.89 × 893,400.89
4. Step 4: Simplify right side
   428,936.77x = 798,165,151,369.54
5. Step 5: Solve for x
   x = 798,165,151,369.54/428,936.77
6. Step 6: Final answer
   x = 1,860,799.11