Finding the Third Proportional to 302,575.50 and 411,132

Step by Step Solution

1. Step 1: Write the proportion equation
   302,575.50 : 411,132 = 411,132 : x
2. Step 2: Convert to fraction form
   302,575.50/411,132 = 411,132/x
3. Step 3: Cross multiply
   302,575.50x = 411,132 × 411,132
4. Step 4: Simplify right side
   302,575.50x = 169,029,521,424
5. Step 5: Solve for x
   x = 169,029,521,424/302,575.50
6. Step 6: Final answer
   x = 558,635.85