Finding the Third Proportional to 915,216 and 1,400,064

Step by Step Solution

1. Step 1: Write the proportion equation
   915,216 : 1,400,064 = 1,400,064 : x
2. Step 2: Convert to fraction form
   915,216/1,400,064 = 1,400,064/x
3. Step 3: Cross multiply
   915,216x = 1,400,064 × 1,400,064
4. Step 4: Simplify right side
   915,216x = 1,960,179,204,096
5. Step 5: Solve for x
   x = 1,960,179,204,096/915,216
6. Step 6: Final answer
   x = 2,141,766.76