Finding the Third Proportional to 90,636 and 200,034

Step by Step Solution

1. Step 1: Write the proportion equation
   90,636 : 200,034 = 200,034 : x
2. Step 2: Convert to fraction form
   90,636/200,034 = 200,034/x
3. Step 3: Cross multiply
   90,636x = 200,034 × 200,034
4. Step 4: Simplify right side
   90,636x = 40,013,601,156
5. Step 5: Solve for x
   x = 40,013,601,156/90,636
6. Step 6: Final answer
   x = 441,475.81