Finding the Third Proportional to 140,768 and 298,808

Step by Step Solution

1. Step 1: Write the proportion equation
   140,768 : 298,808 = 298,808 : x
2. Step 2: Convert to fraction form
   140,768/298,808 = 298,808/x
3. Step 3: Cross multiply
   140,768x = 298,808 × 298,808
4. Step 4: Simplify right side
   140,768x = 89,286,220,864
5. Step 5: Solve for x
   x = 89,286,220,864/140,768
6. Step 6: Final answer
   x = 634,279.25