Finding the Third Proportional to 350,949.75 and 718,499.25

Step by Step Solution

1. Step 1: Write the proportion equation
   350,949.75 : 718,499.25 = 718,499.25 : x
2. Step 2: Convert to fraction form
   350,949.75/718,499.25 = 718,499.25/x
3. Step 3: Cross multiply
   350,949.75x = 718,499.25 × 718,499.25
4. Step 4: Simplify right side
   350,949.75x = 516,241,172,250.56
5. Step 5: Solve for x
   x = 516,241,172,250.56/350,949.75
6. Step 6: Final answer
   x = 1,470,983.16