Finding the Third Proportional to 128,719,431,944 and 277,111,200,016

Step by Step Solution

1. Step 1: Write the proportion equation
   128,719,431,944 : 277,111,200,016 = 277,111,200,016 : x
2. Step 2: Convert to fraction form
   128,719,431,944/277,111,200,016 = 277,111,200,016/x
3. Step 3: Cross multiply
   128,719,431,944x = 277,111,200,016 × 277,111,200,016
4. Step 4: Simplify right side
   128,719,431,944x = 76,790,617,174,307,564,945,408
5. Step 5: Solve for x
   x = 76,790,617,174,307,564,945,408/128,719,431,944
6. Step 6: Final answer
   x = 596,573,617,631.53