Finding the Third Proportional to 79,139,198 and 171,814,288

Step by Step Solution

1. Step 1: Write the proportion equation
   79,139,198 : 171,814,288 = 171,814,288 : x
2. Step 2: Convert to fraction form
   79,139,198/171,814,288 = 171,814,288/x
3. Step 3: Cross multiply
   79,139,198x = 171,814,288 × 171,814,288
4. Step 4: Simplify right side
   79,139,198x = 29,520,149,560,946,944
5. Step 5: Solve for x
   x = 29,520,149,560,946,944/79,139,198
6. Step 6: Final answer
   x = 373,015,525.90