Finding the Third Proportional to 1,029,856 and 2,153,876

Step by Step Solution

1. Step 1: Write the proportion equation
   1,029,856 : 2,153,876 = 2,153,876 : x
2. Step 2: Convert to fraction form
   1,029,856/2,153,876 = 2,153,876/x
3. Step 3: Cross multiply
   1,029,856x = 2,153,876 × 2,153,876
4. Step 4: Simplify right side
   1,029,856x = 4,639,181,823,376
5. Step 5: Solve for x
   x = 4,639,181,823,376/1,029,856
6. Step 6: Final answer
   x = 4,504,689.80