Finding the Third Proportional to 93,978 and 145,419

Step by Step Solution

1. Step 1: Write the proportion equation
   93,978 : 145,419 = 145,419 : x
2. Step 2: Convert to fraction form
   93,978/145,419 = 145,419/x
3. Step 3: Cross multiply
   93,978x = 145,419 × 145,419
4. Step 4: Simplify right side
   93,978x = 21,146,685,561
5. Step 5: Solve for x
   x = 21,146,685,561/93,978
6. Step 6: Final answer
   x = 225,017.40