Finding the Third Proportional to 915,708 and 1,400,787

Step by Step Solution

1. Step 1: Write the proportion equation
   915,708 : 1,400,787 = 1,400,787 : x
2. Step 2: Convert to fraction form
   915,708/1,400,787 = 1,400,787/x
3. Step 3: Cross multiply
   915,708x = 1,400,787 × 1,400,787
4. Step 4: Simplify right side
   915,708x = 1,962,204,219,369
5. Step 5: Solve for x
   x = 1,962,204,219,369/915,708
6. Step 6: Final answer
   x = 2,142,827.43