Finding the Third Proportional to 617,856 and 1,353,840

Step by Step Solution

1. Step 1: Write the proportion equation
   617,856 : 1,353,840 = 1,353,840 : x
2. Step 2: Convert to fraction form
   617,856/1,353,840 = 1,353,840/x
3. Step 3: Cross multiply
   617,856x = 1,353,840 × 1,353,840
4. Step 4: Simplify right side
   617,856x = 1,832,882,745,600
5. Step 5: Solve for x
   x = 1,832,882,745,600/617,856
6. Step 6: Final answer
   x = 2,966,520.91