Finding the Third Proportional to 67,690.69 and 146,680.88

Step by Step Solution

1. Step 1: Write the proportion equation
   67,690.69 : 146,680.88 = 146,680.88 : x
2. Step 2: Convert to fraction form
   67,690.69/146,680.88 = 146,680.88/x
3. Step 3: Cross multiply
   67,690.69x = 146,680.88 × 146,680.88
4. Step 4: Simplify right side
   67,690.69x = 21,515,279,090.77
5. Step 5: Solve for x
   x = 21,515,279,090.77/67,690.69
6. Step 6: Final answer
   x = 317,846.96