Finding the Third Proportional to 368,554.50 and 555,429.38

Step by Step Solution

1. Step 1: Write the proportion equation
   368,554.50 : 555,429.38 = 555,429.38 : x
2. Step 2: Convert to fraction form
   368,554.50/555,429.38 = 555,429.38/x
3. Step 3: Cross multiply
   368,554.50x = 555,429.38 × 555,429.38
4. Step 4: Simplify right side
   368,554.50x = 308,501,790,612.89
5. Step 5: Solve for x
   x = 308,501,790,612.89/368,554.50
6. Step 6: Final answer
   x = 837,058.81