Finding the Third Proportional to 1,985,571 and 4,205,151

Step by Step Solution

1. Step 1: Write the proportion equation
   1,985,571 : 4,205,151 = 4,205,151 : x
2. Step 2: Convert to fraction form
   1,985,571/4,205,151 = 4,205,151/x
3. Step 3: Cross multiply
   1,985,571x = 4,205,151 × 4,205,151
4. Step 4: Simplify right side
   1,985,571x = 17,683,294,932,801
5. Step 5: Solve for x
   x = 17,683,294,932,801/1,985,571
6. Step 6: Final answer
   x = 8,905,899.08