Finding the Third Proportional to 1,035,634 and 1,399,208

Step by Step Solution

1. Step 1: Write the proportion equation
   1,035,634 : 1,399,208 = 1,399,208 : x
2. Step 2: Convert to fraction form
   1,035,634/1,399,208 = 1,399,208/x
3. Step 3: Cross multiply
   1,035,634x = 1,399,208 × 1,399,208
4. Step 4: Simplify right side
   1,035,634x = 1,957,783,027,264
5. Step 5: Solve for x
   x = 1,957,783,027,264/1,035,634
6. Step 6: Final answer
   x = 1,890,419.81