Finding the Third Proportional to 130,915 and 200,180

Step by Step Solution

1. Step 1: Write the proportion equation
   130,915 : 200,180 = 200,180 : x
2. Step 2: Convert to fraction form
   130,915/200,180 = 200,180/x
3. Step 3: Cross multiply
   130,915x = 200,180 × 200,180
4. Step 4: Simplify right side
   130,915x = 40,072,032,400
5. Step 5: Solve for x
   x = 40,072,032,400/130,915
6. Step 6: Final answer
   x = 306,091.99