Finding the Third Proportional to 1,035,792 and 1,399,440

Step by Step Solution

1. Step 1: Write the proportion equation
   1,035,792 : 1,399,440 = 1,399,440 : x
2. Step 2: Convert to fraction form
   1,035,792/1,399,440 = 1,399,440/x
3. Step 3: Cross multiply
   1,035,792x = 1,399,440 × 1,399,440
4. Step 4: Simplify right side
   1,035,792x = 1,958,432,313,600
5. Step 5: Solve for x
   x = 1,958,432,313,600/1,035,792
6. Step 6: Final answer
   x = 1,890,758.29