Finding the Third Proportional to 665,284 and 1,042,431

Step by Step Solution

1. Step 1: Write the proportion equation
   665,284 : 1,042,431 = 1,042,431 : x
2. Step 2: Convert to fraction form
   665,284/1,042,431 = 1,042,431/x
3. Step 3: Cross multiply
   665,284x = 1,042,431 × 1,042,431
4. Step 4: Simplify right side
   665,284x = 1,086,662,389,761
5. Step 5: Solve for x
   x = 1,086,662,389,761/665,284
6. Step 6: Final answer
   x = 1,633,381.22