Finding the Third Proportional to 617,679 and 1,333,772

Step by Step Solution

1. Step 1: Write the proportion equation
   617,679 : 1,333,772 = 1,333,772 : x
2. Step 2: Convert to fraction form
   617,679/1,333,772 = 1,333,772/x
3. Step 3: Cross multiply
   617,679x = 1,333,772 × 1,333,772
4. Step 4: Simplify right side
   617,679x = 1,778,947,747,984
5. Step 5: Solve for x
   x = 1,778,947,747,984/617,679
6. Step 6: Final answer
   x = 2,880,052.18