Finding the Third Proportional to 68,116 and 146,600

Step by Step Solution

1. Step 1: Write the proportion equation
   68,116 : 146,600 = 146,600 : x
2. Step 2: Convert to fraction form
   68,116/146,600 = 146,600/x
3. Step 3: Cross multiply
   68,116x = 146,600 × 146,600
4. Step 4: Simplify right side
   68,116x = 21,491,560,000
5. Step 5: Solve for x
   x = 21,491,560,000/68,116
6. Step 6: Final answer
   x = 315,514.12