Finding the Third Proportional to 156,891 and 340,980

Step by Step Solution

1. Step 1: Write the proportion equation
   156,891 : 340,980 = 340,980 : x
2. Step 2: Convert to fraction form
   156,891/340,980 = 340,980/x
3. Step 3: Cross multiply
   156,891x = 340,980 × 340,980
4. Step 4: Simplify right side
   156,891x = 116,267,360,400
5. Step 5: Solve for x
   x = 116,267,360,400/156,891
6. Step 6: Final answer
   x = 741,070.94