Finding the Third Proportional to 55,323,198 and 81,191,116

Step by Step Solution

1. Step 1: Write the proportion equation
   55,323,198 : 81,191,116 = 81,191,116 : x
2. Step 2: Convert to fraction form
   55,323,198/81,191,116 = 81,191,116/x
3. Step 3: Cross multiply
   55,323,198x = 81,191,116 × 81,191,116
4. Step 4: Simplify right side
   55,323,198x = 6,591,997,317,325,456
5. Step 5: Solve for x
   x = 6,591,997,317,325,456/55,323,198
6. Step 6: Final answer
   x = 119,154,306.97