Finding the Third Proportional to 67,280 and 146,208

Step by Step Solution

1. Step 1: Write the proportion equation
   67,280 : 146,208 = 146,208 : x
2. Step 2: Convert to fraction form
   67,280/146,208 = 146,208/x
3. Step 3: Cross multiply
   67,280x = 146,208 × 146,208
4. Step 4: Simplify right side
   67,280x = 21,376,779,264
5. Step 5: Solve for x
   x = 21,376,779,264/67,280
6. Step 6: Final answer
   x = 317,728.59