Finding the Third Proportional to 64,649,123 and 143,647,150

Step by Step Solution

1. Step 1: Write the proportion equation
   64,649,123 : 143,647,150 = 143,647,150 : x
2. Step 2: Convert to fraction form
   64,649,123/143,647,150 = 143,647,150/x
3. Step 3: Cross multiply
   64,649,123x = 143,647,150 × 143,647,150
4. Step 4: Simplify right side
   64,649,123x = 20,634,503,703,122,500
5. Step 5: Solve for x
   x = 20,634,503,703,122,500/64,649,123
6. Step 6: Final answer
   x = 319,176,854.16