Finding the Third Proportional to 67,642,155 and 144,850,242

Step by Step Solution

1. Step 1: Write the proportion equation
   67,642,155 : 144,850,242 = 144,850,242 : x
2. Step 2: Convert to fraction form
   67,642,155/144,850,242 = 144,850,242/x
3. Step 3: Cross multiply
   67,642,155x = 144,850,242 × 144,850,242
4. Step 4: Simplify right side
   67,642,155x = 20,981,592,607,458,564
5. Step 5: Solve for x
   x = 20,981,592,607,458,564/67,642,155
6. Step 6: Final answer
   x = 310,185,159.05