Finding the Third Proportional to 158,309,874 and 242,172,854

Step by Step Solution

1. Step 1: Write the proportion equation
   158,309,874 : 242,172,854 = 242,172,854 : x
2. Step 2: Convert to fraction form
   158,309,874/242,172,854 = 242,172,854/x
3. Step 3: Cross multiply
   158,309,874x = 242,172,854 × 242,172,854
4. Step 4: Simplify right side
   158,309,874x = 58,647,691,214,505,312
5. Step 5: Solve for x
   x = 58,647,691,214,505,312/158,309,874
6. Step 6: Final answer
   x = 370,461,359.94