Finding the Third Proportional to 302,134.50 and 408,882

Step by Step Solution

1. Step 1: Write the proportion equation
   302,134.50 : 408,882 = 408,882 : x
2. Step 2: Convert to fraction form
   302,134.50/408,882 = 408,882/x
3. Step 3: Cross multiply
   302,134.50x = 408,882 × 408,882
4. Step 4: Simplify right side
   302,134.50x = 167,184,489,924
5. Step 5: Solve for x
   x = 167,184,489,924/302,134.50
6. Step 6: Final answer
   x = 553,344.59