Finding the Third Proportional to 36,630,724 and 72,339,512

Step by Step Solution

1. Step 1: Write the proportion equation
   36,630,724 : 72,339,512 = 72,339,512 : x
2. Step 2: Convert to fraction form
   36,630,724/72,339,512 = 72,339,512/x
3. Step 3: Cross multiply
   36,630,724x = 72,339,512 × 72,339,512
4. Step 4: Simplify right side
   36,630,724x = 5,233,004,996,398,144
5. Step 5: Solve for x
   x = 5,233,004,996,398,144/36,630,724
6. Step 6: Final answer
   x = 142,858,355.64