Finding the Third Proportional to 362,485.50 and 777,450

Step by Step Solution

1. Step 1: Write the proportion equation
   362,485.50 : 777,450 = 777,450 : x
2. Step 2: Convert to fraction form
   362,485.50/777,450 = 777,450/x
3. Step 3: Cross multiply
   362,485.50x = 777,450 × 777,450
4. Step 4: Simplify right side
   362,485.50x = 604,428,502,500
5. Step 5: Solve for x
   x = 604,428,502,500/362,485.50
6. Step 6: Final answer
   x = 1,667,455.67