Finding the Third Proportional to 173,209.50 and 360,022.50

Step by Step Solution

1. Step 1: Write the proportion equation
   173,209.50 : 360,022.50 = 360,022.50 : x
2. Step 2: Convert to fraction form
   173,209.50/360,022.50 = 360,022.50/x
3. Step 3: Cross multiply
   173,209.50x = 360,022.50 × 360,022.50
4. Step 4: Simplify right side
   173,209.50x = 129,616,200,506.25
5. Step 5: Solve for x
   x = 129,616,200,506.25/173,209.50
6. Step 6: Final answer
   x = 748,320.39