Finding the Third Proportional to 175,198.50 and 384,309

Step by Step Solution

1. Step 1: Write the proportion equation
   175,198.50 : 384,309 = 384,309 : x
2. Step 2: Convert to fraction form
   175,198.50/384,309 = 384,309/x
3. Step 3: Cross multiply
   175,198.50x = 384,309 × 384,309
4. Step 4: Simplify right side
   175,198.50x = 147,693,407,481
5. Step 5: Solve for x
   x = 147,693,407,481/175,198.50
6. Step 6: Final answer
   x = 843,006.12