Finding the Third Proportional to 851,658 and 1,854,516

Step by Step Solution

1. Step 1: Write the proportion equation
   851,658 : 1,854,516 = 1,854,516 : x
2. Step 2: Convert to fraction form
   851,658/1,854,516 = 1,854,516/x
3. Step 3: Cross multiply
   851,658x = 1,854,516 × 1,854,516
4. Step 4: Simplify right side
   851,658x = 3,439,229,594,256
5. Step 5: Solve for x
   x = 3,439,229,594,256/851,658
6. Step 6: Final answer
   x = 4,038,275.45