Finding the Third Proportional to 146,580 and 298,280

Step by Step Solution

1. Step 1: Write the proportion equation
   146,580 : 298,280 = 298,280 : x
2. Step 2: Convert to fraction form
   146,580/298,280 = 298,280/x
3. Step 3: Cross multiply
   146,580x = 298,280 × 298,280
4. Step 4: Simplify right side
   146,580x = 88,970,958,400
5. Step 5: Solve for x
   x = 88,970,958,400/146,580
6. Step 6: Final answer
   x = 606,978.84