Finding the Third Proportional to 617,908 and 1,353,920

Step by Step Solution

1. Step 1: Write the proportion equation
   617,908 : 1,353,920 = 1,353,920 : x
2. Step 2: Convert to fraction form
   617,908/1,353,920 = 1,353,920/x
3. Step 3: Cross multiply
   617,908x = 1,353,920 × 1,353,920
4. Step 4: Simplify right side
   617,908x = 1,833,099,366,400
5. Step 5: Solve for x
   x = 1,833,099,366,400/617,908
6. Step 6: Final answer
   x = 2,966,621.84