Finding the Third Proportional to 988,443 and 2,158,164

Step by Step Solution

1. Step 1: Write the proportion equation
   988,443 : 2,158,164 = 2,158,164 : x
2. Step 2: Convert to fraction form
   988,443/2,158,164 = 2,158,164/x
3. Step 3: Cross multiply
   988,443x = 2,158,164 × 2,158,164
4. Step 4: Simplify right side
   988,443x = 4,657,671,850,896
5. Step 5: Solve for x
   x = 4,657,671,850,896/988,443
6. Step 6: Final answer
   x = 4,712,129.94