Finding the Third Proportional to 162,553.50 and 347,640

Step by Step Solution

1. Step 1: Write the proportion equation
   162,553.50 : 347,640 = 347,640 : x
2. Step 2: Convert to fraction form
   162,553.50/347,640 = 347,640/x
3. Step 3: Cross multiply
   162,553.50x = 347,640 × 347,640
4. Step 4: Simplify right side
   162,553.50x = 120,853,569,600
5. Step 5: Solve for x
   x = 120,853,569,600/162,553.50
6. Step 6: Final answer
   x = 743,469.50