Finding the Third Proportional to 68,392 and 104,978

Step by Step Solution

1. Step 1: Write the proportion equation
   68,392 : 104,978 = 104,978 : x
2. Step 2: Convert to fraction form
   68,392/104,978 = 104,978/x
3. Step 3: Cross multiply
   68,392x = 104,978 × 104,978
4. Step 4: Simplify right side
   68,392x = 11,020,380,484
5. Step 5: Solve for x
   x = 11,020,380,484/68,392
6. Step 6: Final answer
   x = 161,135.52