Finding the Third Proportional to 188,700.50 and 303,005.50

Step by Step Solution

1. Step 1: Write the proportion equation
   188,700.50 : 303,005.50 = 303,005.50 : x
2. Step 2: Convert to fraction form
   188,700.50/303,005.50 = 303,005.50/x
3. Step 3: Cross multiply
   188,700.50x = 303,005.50 × 303,005.50
4. Step 4: Simplify right side
   188,700.50x = 91,812,333,030.25
5. Step 5: Solve for x
   x = 91,812,333,030.25/188,700.50
6. Step 6: Final answer
   x = 486,550.56