Finding the Third Proportional to 139,671,087 and 329,243,589

Step by Step Solution

1. Step 1: Write the proportion equation
   139,671,087 : 329,243,589 = 329,243,589 : x
2. Step 2: Convert to fraction form
   139,671,087/329,243,589 = 329,243,589/x
3. Step 3: Cross multiply
   139,671,087x = 329,243,589 × 329,243,589
4. Step 4: Simplify right side
   139,671,087x = 108,401,340,897,600,928
5. Step 5: Solve for x
   x = 108,401,340,897,600,928/139,671,087
6. Step 6: Final answer
   x = 776,118,688.74