Finding the Third Proportional to 915,168 and 1,399,960

Step by Step Solution

1. Step 1: Write the proportion equation
   915,168 : 1,399,960 = 1,399,960 : x
2. Step 2: Convert to fraction form
   915,168/1,399,960 = 1,399,960/x
3. Step 3: Cross multiply
   915,168x = 1,399,960 × 1,399,960
4. Step 4: Simplify right side
   915,168x = 1,959,888,001,600
5. Step 5: Solve for x
   x = 1,959,888,001,600/915,168
6. Step 6: Final answer
   x = 2,141,560.90