Finding the Third Proportional to 851,640 and 1,854,480

Step by Step Solution

1. Step 1: Write the proportion equation
   851,640 : 1,854,480 = 1,854,480 : x
2. Step 2: Convert to fraction form
   851,640/1,854,480 = 1,854,480/x
3. Step 3: Cross multiply
   851,640x = 1,854,480 × 1,854,480
4. Step 4: Simplify right side
   851,640x = 3,439,096,070,400
5. Step 5: Solve for x
   x = 3,439,096,070,400/851,640
6. Step 6: Final answer
   x = 4,038,204.02