Finding the Third Proportional to 146,404 and 214,988

Step by Step Solution

1. Step 1: Write the proportion equation
   146,404 : 214,988 = 214,988 : x
2. Step 2: Convert to fraction form
   146,404/214,988 = 214,988/x
3. Step 3: Cross multiply
   146,404x = 214,988 × 214,988
4. Step 4: Simplify right side
   146,404x = 46,219,840,144
5. Step 5: Solve for x
   x = 46,219,840,144/146,404
6. Step 6: Final answer
   x = 315,700.66