Finding the Third Proportional to 200,448 and 300,934.50

Step by Step Solution

1. Step 1: Write the proportion equation
   200,448 : 300,934.50 = 300,934.50 : x
2. Step 2: Convert to fraction form
   200,448/300,934.50 = 300,934.50/x
3. Step 3: Cross multiply
   200,448x = 300,934.50 × 300,934.50
4. Step 4: Simplify right side
   200,448x = 90,561,573,290.25
5. Step 5: Solve for x
   x = 90,561,573,290.25/200,448
6. Step 6: Final answer
   x = 451,795.84