Finding the Third Proportional to 171,345,734 and 261,036,122

Step by Step Solution

1. Step 1: Write the proportion equation
   171,345,734 : 261,036,122 = 261,036,122 : x
2. Step 2: Convert to fraction form
   171,345,734/261,036,122 = 261,036,122/x
3. Step 3: Cross multiply
   171,345,734x = 261,036,122 × 261,036,122
4. Step 4: Simplify right side
   171,345,734x = 68,139,856,988,798,880
5. Step 5: Solve for x
   x = 68,139,856,988,798,880/171,345,734
6. Step 6: Final answer
   x = 397,674,662.79