Finding the Third Proportional to 328,344 and 711,012

Step by Step Solution

1. Step 1: Write the proportion equation
   328,344 : 711,012 = 711,012 : x
2. Step 2: Convert to fraction form
   328,344/711,012 = 711,012/x
3. Step 3: Cross multiply
   328,344x = 711,012 × 711,012
4. Step 4: Simplify right side
   328,344x = 505,538,064,144
5. Step 5: Solve for x
   x = 505,538,064,144/328,344
6. Step 6: Final answer
   x = 1,539,659.82