Finding the Third Proportional to 1,035,666 and 1,399,257

Step by Step Solution

1. Step 1: Write the proportion equation
   1,035,666 : 1,399,257 = 1,399,257 : x
2. Step 2: Convert to fraction form
   1,035,666/1,399,257 = 1,399,257/x
3. Step 3: Cross multiply
   1,035,666x = 1,399,257 × 1,399,257
4. Step 4: Simplify right side
   1,035,666x = 1,957,920,152,049
5. Step 5: Solve for x
   x = 1,957,920,152,049/1,035,666
6. Step 6: Final answer
   x = 1,890,493.80