Finding the Third Proportional to 174,513 and 379,928

Step by Step Solution

1. Step 1: Write the proportion equation
   174,513 : 379,928 = 379,928 : x
2. Step 2: Convert to fraction form
   174,513/379,928 = 379,928/x
3. Step 3: Cross multiply
   174,513x = 379,928 × 379,928
4. Step 4: Simplify right side
   174,513x = 144,345,285,184
5. Step 5: Solve for x
   x = 144,345,285,184/174,513
6. Step 6: Final answer
   x = 827,131.99