Finding the Third Proportional to 245,704.50 and 360,389

Step by Step Solution

1. Step 1: Write the proportion equation
   245,704.50 : 360,389 = 360,389 : x
2. Step 2: Convert to fraction form
   245,704.50/360,389 = 360,389/x
3. Step 3: Cross multiply
   245,704.50x = 360,389 × 360,389
4. Step 4: Simplify right side
   245,704.50x = 129,880,231,321
5. Step 5: Solve for x
   x = 129,880,231,321/245,704.50
6. Step 6: Final answer
   x = 528,603.39