Finding the Third Proportional to 631,446 and 1,395,784

Step by Step Solution

1. Step 1: Write the proportion equation
   631,446 : 1,395,784 = 1,395,784 : x
2. Step 2: Convert to fraction form
   631,446/1,395,784 = 1,395,784/x
3. Step 3: Cross multiply
   631,446x = 1,395,784 × 1,395,784
4. Step 4: Simplify right side
   631,446x = 1,948,212,974,656
5. Step 5: Solve for x
   x = 1,948,212,974,656/631,446
6. Step 6: Final answer
   x = 3,085,320.00