Finding the Third Proportional to 65,108,230,724 and 139,636,972,858

Step by Step Solution

1. Step 1: Write the proportion equation
   65,108,230,724 : 139,636,972,858 = 139,636,972,858 : x
2. Step 2: Convert to fraction form
   65,108,230,724/139,636,972,858 = 139,636,972,858/x
3. Step 3: Cross multiply
   65,108,230,724x = 139,636,972,858 × 139,636,972,858
4. Step 4: Simplify right side
   65,108,230,724x = 19,498,484,188,945,829,593,088
5. Step 5: Solve for x
   x = 19,498,484,188,945,829,593,088/65,108,230,724
6. Step 6: Final answer
   x = 299,478,022,549.90