Finding the Third Proportional to 915,696 and 1,400,868

Step by Step Solution

1. Step 1: Write the proportion equation
   915,696 : 1,400,868 = 1,400,868 : x
2. Step 2: Convert to fraction form
   915,696/1,400,868 = 1,400,868/x
3. Step 3: Cross multiply
   915,696x = 1,400,868 × 1,400,868
4. Step 4: Simplify right side
   915,696x = 1,962,431,153,424
5. Step 5: Solve for x
   x = 1,962,431,153,424/915,696
6. Step 6: Final answer
   x = 2,143,103.34