Finding the Third Proportional to 851,655 and 1,854,510

Step by Step Solution

1. Step 1: Write the proportion equation
   851,655 : 1,854,510 = 1,854,510 : x
2. Step 2: Convert to fraction form
   851,655/1,854,510 = 1,854,510/x
3. Step 3: Cross multiply
   851,655x = 1,854,510 × 1,854,510
4. Step 4: Simplify right side
   851,655x = 3,439,207,340,100
5. Step 5: Solve for x
   x = 3,439,207,340,100/851,655
6. Step 6: Final answer
   x = 4,038,263.55