Finding the Third Proportional to 115,400,756 and 243,678,568

Step by Step Solution

1. Step 1: Write the proportion equation
   115,400,756 : 243,678,568 = 243,678,568 : x
2. Step 2: Convert to fraction form
   115,400,756/243,678,568 = 243,678,568/x
3. Step 3: Cross multiply
   115,400,756x = 243,678,568 × 243,678,568
4. Step 4: Simplify right side
   115,400,756x = 59,379,244,502,530,624
5. Step 5: Solve for x
   x = 59,379,244,502,530,624/115,400,756
6. Step 6: Final answer
   x = 514,548,141.28