Finding the Third Proportional to 129,500 and 200,002

Step by Step Solution

1. Step 1: Write the proportion equation
   129,500 : 200,002 = 200,002 : x
2. Step 2: Convert to fraction form
   129,500/200,002 = 200,002/x
3. Step 3: Cross multiply
   129,500x = 200,002 × 200,002
4. Step 4: Simplify right side
   129,500x = 40,000,800,004
5. Step 5: Solve for x
   x = 40,000,800,004/129,500
6. Step 6: Final answer
   x = 308,886.49