Finding the Third Proportional to 143,506 and 298,814

Step by Step Solution

1. Step 1: Write the proportion equation
   143,506 : 298,814 = 298,814 : x
2. Step 2: Convert to fraction form
   143,506/298,814 = 298,814/x
3. Step 3: Cross multiply
   143,506x = 298,814 × 298,814
4. Step 4: Simplify right side
   143,506x = 89,289,806,596
5. Step 5: Solve for x
   x = 89,289,806,596/143,506
6. Step 6: Final answer
   x = 622,202.60