Finding the Third Proportional to 1,311,664 and 1,929,988

Step by Step Solution

1. Step 1: Write the proportion equation
   1,311,664 : 1,929,988 = 1,929,988 : x
2. Step 2: Convert to fraction form
   1,311,664/1,929,988 = 1,929,988/x
3. Step 3: Cross multiply
   1,311,664x = 1,929,988 × 1,929,988
4. Step 4: Simplify right side
   1,311,664x = 3,724,853,680,144
5. Step 5: Solve for x
   x = 3,724,853,680,144/1,311,664
6. Step 6: Final answer
   x = 2,839,792.57