Finding the Third Proportional to 158,804 and 340,640

Step by Step Solution

1. Step 1: Write the proportion equation
   158,804 : 340,640 = 340,640 : x
2. Step 2: Convert to fraction form
   158,804/340,640 = 340,640/x
3. Step 3: Cross multiply
   158,804x = 340,640 × 340,640
4. Step 4: Simplify right side
   158,804x = 116,035,609,600
5. Step 5: Solve for x
   x = 116,035,609,600/158,804
6. Step 6: Final answer
   x = 730,684.43