Finding the Third Proportional to 139,671,019 and 329,243,372

Step by Step Solution

1. Step 1: Write the proportion equation
   139,671,019 : 329,243,372 = 329,243,372 : x
2. Step 2: Convert to fraction form
   139,671,019/329,243,372 = 329,243,372/x
3. Step 3: Cross multiply
   139,671,019x = 329,243,372 × 329,243,372
4. Step 4: Simplify right side
   139,671,019x = 108,401,198,005,930,384
5. Step 5: Solve for x
   x = 108,401,198,005,930,384/139,671,019
6. Step 6: Final answer
   x = 776,118,043.54