Finding the Third Proportional to 156,146 and 335,980

Step by Step Solution

1. Step 1: Write the proportion equation
   156,146 : 335,980 = 335,980 : x
2. Step 2: Convert to fraction form
   156,146/335,980 = 335,980/x
3. Step 3: Cross multiply
   156,146x = 335,980 × 335,980
4. Step 4: Simplify right side
   156,146x = 112,882,560,400
5. Step 5: Solve for x
   x = 112,882,560,400/156,146
6. Step 6: Final answer
   x = 722,929.57