Finding the Third Proportional to 68,976 and 105,470

Step by Step Solution

1. Step 1: Write the proportion equation
   68,976 : 105,470 = 105,470 : x
2. Step 2: Convert to fraction form
   68,976/105,470 = 105,470/x
3. Step 3: Cross multiply
   68,976x = 105,470 × 105,470
4. Step 4: Simplify right side
   68,976x = 11,123,920,900
5. Step 5: Solve for x
   x = 11,123,920,900/68,976
6. Step 6: Final answer
   x = 161,272.34