Finding the Third Proportional to 128,719,431,948 and 277,111,200,024

Step by Step Solution

1. Step 1: Write the proportion equation
   128,719,431,948 : 277,111,200,024 = 277,111,200,024 : x
2. Step 2: Convert to fraction form
   128,719,431,948/277,111,200,024 = 277,111,200,024/x
3. Step 3: Cross multiply
   128,719,431,948x = 277,111,200,024 × 277,111,200,024
4. Step 4: Simplify right side
   128,719,431,948x = 76,790,617,178,741,330,149,376
5. Step 5: Solve for x
   x = 76,790,617,178,741,330,149,376/128,719,431,948
6. Step 6: Final answer
   x = 596,573,617,647.44