Finding the Third Proportional to 65,414,356,686 and 141,992,835,479

Step by Step Solution

1. Step 1: Write the proportion equation
   65,414,356,686 : 141,992,835,479 = 141,992,835,479 : x
2. Step 2: Convert to fraction form
   65,414,356,686/141,992,835,479 = 141,992,835,479/x
3. Step 3: Cross multiply
   65,414,356,686x = 141,992,835,479 × 141,992,835,479
4. Step 4: Simplify right side
   65,414,356,686x = 20,161,965,327,366,360,137,728
5. Step 5: Solve for x
   x = 20,161,965,327,366,360,137,728/65,414,356,686
6. Step 6: Final answer
   x = 308,219,270,949.15