Finding the Third Proportional to 115,400,764 and 243,678,584

Step by Step Solution

1. Step 1: Write the proportion equation
   115,400,764 : 243,678,584 = 243,678,584 : x
2. Step 2: Convert to fraction form
   115,400,764/243,678,584 = 243,678,584/x
3. Step 3: Cross multiply
   115,400,764x = 243,678,584 × 243,678,584
4. Step 4: Simplify right side
   115,400,764x = 59,379,252,300,245,056
5. Step 5: Solve for x
   x = 59,379,252,300,245,056/115,400,764
6. Step 6: Final answer
   x = 514,548,173.18