Finding the Third Proportional to 917,713 and 1,968,243

Step by Step Solution

1. Step 1: Write the proportion equation
   917,713 : 1,968,243 = 1,968,243 : x
2. Step 2: Convert to fraction form
   917,713/1,968,243 = 1,968,243/x
3. Step 3: Cross multiply
   917,713x = 1,968,243 × 1,968,243
4. Step 4: Simplify right side
   917,713x = 3,873,980,507,049
5. Step 5: Solve for x
   x = 3,873,980,507,049/917,713
6. Step 6: Final answer
   x = 4,221,342.08