Finding the Third Proportional to 917,772 and 1,968,401

Step by Step Solution

1. Step 1: Write the proportion equation
   917,772 : 1,968,401 = 1,968,401 : x
2. Step 2: Convert to fraction form
   917,772/1,968,401 = 1,968,401/x
3. Step 3: Cross multiply
   917,772x = 1,968,401 × 1,968,401
4. Step 4: Simplify right side
   917,772x = 3,874,602,496,801
5. Step 5: Solve for x
   x = 3,874,602,496,801/917,772
6. Step 6: Final answer
   x = 4,221,748.43