Finding the Third Proportional to 144,295,286 and 309,021,484

Step by Step Solution

1. Step 1: Write the proportion equation
   144,295,286 : 309,021,484 = 309,021,484 : x
2. Step 2: Convert to fraction form
   144,295,286/309,021,484 = 309,021,484/x
3. Step 3: Cross multiply
   144,295,286x = 309,021,484 × 309,021,484
4. Step 4: Simplify right side
   144,295,286x = 95,494,277,573,562,256
5. Step 5: Solve for x
   x = 95,494,277,573,562,256/144,295,286
6. Step 6: Final answer
   x = 661,797,625.00