Finding the Third Proportional to 288,927 and 449,121.38

Step by Step Solution

1. Step 1: Write the proportion equation
   288,927 : 449,121.38 = 449,121.38 : x
2. Step 2: Convert to fraction form
   288,927/449,121.38 = 449,121.38/x
3. Step 3: Cross multiply
   288,927x = 449,121.38 × 449,121.38
4. Step 4: Simplify right side
   288,927x = 201,710,009,481.89
5. Step 5: Solve for x
   x = 201,710,009,481.89/288,927
6. Step 6: Final answer
   x = 698,134.86