Finding the Third Proportional to 208,308 and 446,140

Step by Step Solution

1. Step 1: Write the proportion equation
   208,308 : 446,140 = 446,140 : x
2. Step 2: Convert to fraction form
   208,308/446,140 = 446,140/x
3. Step 3: Cross multiply
   208,308x = 446,140 × 446,140
4. Step 4: Simplify right side
   208,308x = 199,040,899,600
5. Step 5: Solve for x
   x = 199,040,899,600/208,308
6. Step 6: Final answer
   x = 955,512.51