Finding the Third Proportional to 113,870 and 169,885

Step by Step Solution

1. Step 1: Write the proportion equation
   113,870 : 169,885 = 169,885 : x
2. Step 2: Convert to fraction form
   113,870/169,885 = 169,885/x
3. Step 3: Cross multiply
   113,870x = 169,885 × 169,885
4. Step 4: Simplify right side
   113,870x = 28,860,913,225
5. Step 5: Solve for x
   x = 28,860,913,225/113,870
6. Step 6: Final answer
   x = 253,454.93