Finding the Third Proportional to 636,580 and 1,401,096

Step by Step Solution

1. Step 1: Write the proportion equation
   636,580 : 1,401,096 = 1,401,096 : x
2. Step 2: Convert to fraction form
   636,580/1,401,096 = 1,401,096/x
3. Step 3: Cross multiply
   636,580x = 1,401,096 × 1,401,096
4. Step 4: Simplify right side
   636,580x = 1,963,070,001,216
5. Step 5: Solve for x
   x = 1,963,070,001,216/636,580
6. Step 6: Final answer
   x = 3,083,775.80