Finding the Third Proportional to 140,279 and 298,881

Step by Step Solution

1. Step 1: Write the proportion equation
   140,279 : 298,881 = 298,881 : x
2. Step 2: Convert to fraction form
   140,279/298,881 = 298,881/x
3. Step 3: Cross multiply
   140,279x = 298,881 × 298,881
4. Step 4: Simplify right side
   140,279x = 89,329,852,161
5. Step 5: Solve for x
   x = 89,329,852,161/140,279
6. Step 6: Final answer
   x = 636,801.32