Finding the Third Proportional to 171,345,772 and 261,036,162

Step by Step Solution

1. Step 1: Write the proportion equation
   171,345,772 : 261,036,162 = 261,036,162 : x
2. Step 2: Convert to fraction form
   171,345,772/261,036,162 = 261,036,162/x
3. Step 3: Cross multiply
   171,345,772x = 261,036,162 × 261,036,162
4. Step 4: Simplify right side
   171,345,772x = 68,139,877,871,690,240
5. Step 5: Solve for x
   x = 68,139,877,871,690,240/171,345,772
6. Step 6: Final answer
   x = 397,674,696.47