Finding the Third Proportional to 300,568 and 710,808

Step by Step Solution

1. Step 1: Write the proportion equation
   300,568 : 710,808 = 710,808 : x
2. Step 2: Convert to fraction form
   300,568/710,808 = 710,808/x
3. Step 3: Cross multiply
   300,568x = 710,808 × 710,808
4. Step 4: Simplify right side
   300,568x = 505,248,012,864
5. Step 5: Solve for x
   x = 505,248,012,864/300,568
6. Step 6: Final answer
   x = 1,680,977.39