Finding the Third Proportional to 329,387 and 719,012

Step by Step Solution

1. Step 1: Write the proportion equation
   329,387 : 719,012 = 719,012 : x
2. Step 2: Convert to fraction form
   329,387/719,012 = 719,012/x
3. Step 3: Cross multiply
   329,387x = 719,012 × 719,012
4. Step 4: Simplify right side
   329,387x = 516,978,256,144
5. Step 5: Solve for x
   x = 516,978,256,144/329,387
6. Step 6: Final answer
   x = 1,569,516.27