Finding the Third Proportional to 208,770 and 457,440

Step by Step Solution

1. Step 1: Write the proportion equation
   208,770 : 457,440 = 457,440 : x
2. Step 2: Convert to fraction form
   208,770/457,440 = 457,440/x
3. Step 3: Cross multiply
   208,770x = 457,440 × 457,440
4. Step 4: Simplify right side
   208,770x = 209,251,353,600
5. Step 5: Solve for x
   x = 209,251,353,600/208,770
6. Step 6: Final answer
   x = 1,002,305.66