Finding the Third Proportional to 115,405,852 and 243,688,760

Step by Step Solution

1. Step 1: Write the proportion equation
   115,405,852 : 243,688,760 = 243,688,760 : x
2. Step 2: Convert to fraction form
   115,405,852/243,688,760 = 243,688,760/x
3. Step 3: Cross multiply
   115,405,852x = 243,688,760 × 243,688,760
4. Step 4: Simplify right side
   115,405,852x = 59,384,211,750,337,600
5. Step 5: Solve for x
   x = 59,384,211,750,337,600/115,405,852
6. Step 6: Final answer
   x = 514,568,461.83