Finding the Third Proportional to 301,108.50 and 654,700.50

Step by Step Solution

1. Step 1: Write the proportion equation
   301,108.50 : 654,700.50 = 654,700.50 : x
2. Step 2: Convert to fraction form
   301,108.50/654,700.50 = 654,700.50/x
3. Step 3: Cross multiply
   301,108.50x = 654,700.50 × 654,700.50
4. Step 4: Simplify right side
   301,108.50x = 428,632,744,700.25
5. Step 5: Solve for x
   x = 428,632,744,700.25/301,108.50
6. Step 6: Final answer
   x = 1,423,515.92