Finding the Third Proportional to 177,979.50 and 275,658

Step by Step Solution

1. Step 1: Write the proportion equation
   177,979.50 : 275,658 = 275,658 : x
2. Step 2: Convert to fraction form
   177,979.50/275,658 = 275,658/x
3. Step 3: Cross multiply
   177,979.50x = 275,658 × 275,658
4. Step 4: Simplify right side
   177,979.50x = 75,987,332,964
5. Step 5: Solve for x
   x = 75,987,332,964/177,979.50
6. Step 6: Final answer
   x = 426,944.30