Finding the Third Proportional to 458,455 and 708,458.50

Step by Step Solution

1. Step 1: Write the proportion equation
   458,455 : 708,458.50 = 708,458.50 : x
2. Step 2: Convert to fraction form
   458,455/708,458.50 = 708,458.50/x
3. Step 3: Cross multiply
   458,455x = 708,458.50 × 708,458.50
4. Step 4: Simplify right side
   458,455x = 501,913,446,222.25
5. Step 5: Solve for x
   x = 501,913,446,222.25/458,455
6. Step 6: Final answer
   x = 1,094,793.26