Finding the Third Proportional to 271,555.50 and 379,830

Step by Step Solution

1. Step 1: Write the proportion equation
   271,555.50 : 379,830 = 379,830 : x
2. Step 2: Convert to fraction form
   271,555.50/379,830 = 379,830/x
3. Step 3: Cross multiply
   271,555.50x = 379,830 × 379,830
4. Step 4: Simplify right side
   271,555.50x = 144,270,828,900
5. Step 5: Solve for x
   x = 144,270,828,900/271,555.50
6. Step 6: Final answer
   x = 531,275.67