Finding the Third Proportional to 915,717 and 1,989,081

Step by Step Solution

1. Step 1: Write the proportion equation
   915,717 : 1,989,081 = 1,989,081 : x
2. Step 2: Convert to fraction form
   915,717/1,989,081 = 1,989,081/x
3. Step 3: Cross multiply
   915,717x = 1,989,081 × 1,989,081
4. Step 4: Simplify right side
   915,717x = 3,956,443,224,561
5. Step 5: Solve for x
   x = 3,956,443,224,561/915,717
6. Step 6: Final answer
   x = 4,320,596.02