Finding the Third Proportional to 900,585 and 1,369,455

Step by Step Solution

1. Step 1: Write the proportion equation
   900,585 : 1,369,455 = 1,369,455 : x
2. Step 2: Convert to fraction form
   900,585/1,369,455 = 1,369,455/x
3. Step 3: Cross multiply
   900,585x = 1,369,455 × 1,369,455
4. Step 4: Simplify right side
   900,585x = 1,875,406,997,025
5. Step 5: Solve for x
   x = 1,875,406,997,025/900,585
6. Step 6: Final answer
   x = 2,082,431.97