Finding the Third Proportional to 148,732 and 326,988

Step by Step Solution

1. Step 1: Write the proportion equation
   148,732 : 326,988 = 326,988 : x
2. Step 2: Convert to fraction form
   148,732/326,988 = 326,988/x
3. Step 3: Cross multiply
   148,732x = 326,988 × 326,988
4. Step 4: Simplify right side
   148,732x = 106,921,152,144
5. Step 5: Solve for x
   x = 106,921,152,144/148,732
6. Step 6: Final answer
   x = 718,884.65