Finding the Third Proportional to 361,302 and 508,345.50

Step by Step Solution

1. Step 1: Write the proportion equation
   361,302 : 508,345.50 = 508,345.50 : x
2. Step 2: Convert to fraction form
   361,302/508,345.50 = 508,345.50/x
3. Step 3: Cross multiply
   361,302x = 508,345.50 × 508,345.50
4. Step 4: Simplify right side
   361,302x = 258,415,147,370.25
5. Step 5: Solve for x
   x = 258,415,147,370.25/361,302
6. Step 6: Final answer
   x = 715,233.09