Finding the Third Proportional to 55,778,738 and 120,819,620

Step by Step Solution

1. Step 1: Write the proportion equation
   55,778,738 : 120,819,620 = 120,819,620 : x
2. Step 2: Convert to fraction form
   55,778,738/120,819,620 = 120,819,620/x
3. Step 3: Cross multiply
   55,778,738x = 120,819,620 × 120,819,620
4. Step 4: Simplify right side
   55,778,738x = 14,597,380,576,944,400
5. Step 5: Solve for x
   x = 14,597,380,576,944,400/55,778,738
6. Step 6: Final answer
   x = 261,701,521.05