Finding the Third Proportional to 900,636 and 1,369,512

Step by Step Solution

1. Step 1: Write the proportion equation
   900,636 : 1,369,512 = 1,369,512 : x
2. Step 2: Convert to fraction form
   900,636/1,369,512 = 1,369,512/x
3. Step 3: Cross multiply
   900,636x = 1,369,512 × 1,369,512
4. Step 4: Simplify right side
   900,636x = 1,875,563,118,144
5. Step 5: Solve for x
   x = 1,875,563,118,144/900,636
6. Step 6: Final answer
   x = 2,082,487.40