Finding the Third Proportional to 162,763 and 356,558

Step by Step Solution

1. Step 1: Write the proportion equation
   162,763 : 356,558 = 356,558 : x
2. Step 2: Convert to fraction form
   162,763/356,558 = 356,558/x
3. Step 3: Cross multiply
   162,763x = 356,558 × 356,558
4. Step 4: Simplify right side
   162,763x = 127,133,607,364
5. Step 5: Solve for x
   x = 127,133,607,364/162,763
6. Step 6: Final answer
   x = 781,096.49