Finding the Third Proportional to 608,458.50 and 1,298,355.50

Step by Step Solution

1. Step 1: Write the proportion equation
   608,458.50 : 1,298,355.50 = 1,298,355.50 : x
2. Step 2: Convert to fraction form
   608,458.50/1,298,355.50 = 1,298,355.50/x
3. Step 3: Cross multiply
   608,458.50x = 1,298,355.50 × 1,298,355.50
4. Step 4: Simplify right side
   608,458.50x = 1,685,727,004,380.25
5. Step 5: Solve for x
   x = 1,685,727,004,380.25/608,458.50
6. Step 6: Final answer
   x = 2,770,488.05