Finding the Third Proportional to 67,590 and 146,700

Step by Step Solution

1. Step 1: Write the proportion equation
   67,590 : 146,700 = 146,700 : x
2. Step 2: Convert to fraction form
   67,590/146,700 = 146,700/x
3. Step 3: Cross multiply
   67,590x = 146,700 × 146,700
4. Step 4: Simplify right side
   67,590x = 21,520,890,000
5. Step 5: Solve for x
   x = 21,520,890,000/67,590
6. Step 6: Final answer
   x = 318,403.46