Finding the Third Proportional to 64,676,086,785 and 140,740,831,242

Step by Step Solution

1. Step 1: Write the proportion equation
   64,676,086,785 : 140,740,831,242 = 140,740,831,242 : x
2. Step 2: Convert to fraction form
   64,676,086,785/140,740,831,242 = 140,740,831,242/x
3. Step 3: Cross multiply
   64,676,086,785x = 140,740,831,242 × 140,740,831,242
4. Step 4: Simplify right side
   64,676,086,785x = 19,807,981,578,689,125,023,744
5. Step 5: Solve for x
   x = 19,807,981,578,689,125,023,744/64,676,086,785
6. Step 6: Final answer
   x = 306,264,379,360.74