Finding the Third Proportional to 302,845.50 and 441,123

Step by Step Solution

1. Step 1: Write the proportion equation
   302,845.50 : 441,123 = 441,123 : x
2. Step 2: Convert to fraction form
   302,845.50/441,123 = 441,123/x
3. Step 3: Cross multiply
   302,845.50x = 441,123 × 441,123
4. Step 4: Simplify right side
   302,845.50x = 194,589,501,129
5. Step 5: Solve for x
   x = 194,589,501,129/302,845.50
6. Step 6: Final answer
   x = 642,537.21