Finding the Third Proportional to 329,487.75 and 719,389.69

Step by Step Solution

1. Step 1: Write the proportion equation
   329,487.75 : 719,389.69 = 719,389.69 : x
2. Step 2: Convert to fraction form
   329,487.75/719,389.69 = 719,389.69/x
3. Step 3: Cross multiply
   329,487.75x = 719,389.69 × 719,389.69
4. Step 4: Simplify right side
   329,487.75x = 517,521,522,481.35
5. Step 5: Solve for x
   x = 517,521,522,481.35/329,487.75
6. Step 6: Final answer
   x = 1,570,685.17