Finding the Third Proportional to 68,174 and 148,978

Step by Step Solution

1. Step 1: Write the proportion equation
   68,174 : 148,978 = 148,978 : x
2. Step 2: Convert to fraction form
   68,174/148,978 = 148,978/x
3. Step 3: Cross multiply
   68,174x = 148,978 × 148,978
4. Step 4: Simplify right side
   68,174x = 22,194,444,484
5. Step 5: Solve for x
   x = 22,194,444,484/68,174
6. Step 6: Final answer
   x = 325,555.85