Finding the Third Proportional to 857,474 and 1,862,516

Step by Step Solution

1. Step 1: Write the proportion equation
   857,474 : 1,862,516 = 1,862,516 : x
2. Step 2: Convert to fraction form
   857,474/1,862,516 = 1,862,516/x
3. Step 3: Cross multiply
   857,474x = 1,862,516 × 1,862,516
4. Step 4: Simplify right side
   857,474x = 3,468,965,850,256
5. Step 5: Solve for x
   x = 3,468,965,850,256/857,474
6. Step 6: Final answer
   x = 4,045,563.89