Finding the Third Proportional to 458,119 and 685,062.50

Step by Step Solution

1. Step 1: Write the proportion equation
   458,119 : 685,062.50 = 685,062.50 : x
2. Step 2: Convert to fraction form
   458,119/685,062.50 = 685,062.50/x
3. Step 3: Cross multiply
   458,119x = 685,062.50 × 685,062.50
4. Step 4: Simplify right side
   458,119x = 469,310,628,906.25
5. Step 5: Solve for x
   x = 469,310,628,906.25/458,119
6. Step 6: Final answer
   x = 1,024,429.52