Finding the Third Proportional to 175,603.50 and 379,287

Step by Step Solution

1. Step 1: Write the proportion equation
   175,603.50 : 379,287 = 379,287 : x
2. Step 2: Convert to fraction form
   175,603.50/379,287 = 379,287/x
3. Step 3: Cross multiply
   175,603.50x = 379,287 × 379,287
4. Step 4: Simplify right side
   175,603.50x = 143,858,628,369
5. Step 5: Solve for x
   x = 143,858,628,369/175,603.50
6. Step 6: Final answer
   x = 819,224.15