Finding the Third Proportional to 171,345,788 and 261,036,186

Step by Step Solution

1. Step 1: Write the proportion equation
   171,345,788 : 261,036,186 = 261,036,186 : x
2. Step 2: Convert to fraction form
   171,345,788/261,036,186 = 261,036,186/x
3. Step 3: Cross multiply
   171,345,788x = 261,036,186 × 261,036,186
4. Step 4: Simplify right side
   171,345,788x = 68,139,890,401,426,592
5. Step 5: Solve for x
   x = 68,139,890,401,426,592/171,345,788
6. Step 6: Final answer
   x = 397,674,732.46