Finding the Third Proportional to 200,079.38 and 305,200.50

Step by Step Solution

1. Step 1: Write the proportion equation
   200,079.38 : 305,200.50 = 305,200.50 : x
2. Step 2: Convert to fraction form
   200,079.38/305,200.50 = 305,200.50/x
3. Step 3: Cross multiply
   200,079.38x = 305,200.50 × 305,200.50
4. Step 4: Simplify right side
   200,079.38x = 93,147,345,200.25
5. Step 5: Solve for x
   x = 93,147,345,200.25/200,079.38
6. Step 6: Final answer
   x = 465,551.96