Finding the Third Proportional to 129,451.50 and 200,898

Step by Step Solution

1. Step 1: Write the proportion equation
   129,451.50 : 200,898 = 200,898 : x
2. Step 2: Convert to fraction form
   129,451.50/200,898 = 200,898/x
3. Step 3: Cross multiply
   129,451.50x = 200,898 × 200,898
4. Step 4: Simplify right side
   129,451.50x = 40,360,006,404
5. Step 5: Solve for x
   x = 40,360,006,404/129,451.50
6. Step 6: Final answer
   x = 311,777.05