Finding the Third Proportional to 64,676,086,811 and 140,740,831,281

Step by Step Solution

1. Step 1: Write the proportion equation
   64,676,086,811 : 140,740,831,281 = 140,740,831,281 : x
2. Step 2: Convert to fraction form
   64,676,086,811/140,740,831,281 = 140,740,831,281/x
3. Step 3: Cross multiply
   64,676,086,811x = 140,740,831,281 × 140,740,831,281
4. Step 4: Simplify right side
   64,676,086,811x = 19,807,981,589,666,906,243,072
5. Step 5: Solve for x
   x = 19,807,981,589,666,906,243,072/64,676,086,811
6. Step 6: Final answer
   x = 306,264,379,407.35