Finding the Third Proportional to 171,345,783 and 261,036,178

Step by Step Solution

1. Step 1: Write the proportion equation
   171,345,783 : 261,036,178 = 261,036,178 : x
2. Step 2: Convert to fraction form
   171,345,783/261,036,178 = 261,036,178/x
3. Step 3: Cross multiply
   171,345,783x = 261,036,178 × 261,036,178
4. Step 4: Simplify right side
   171,345,783x = 68,139,886,224,847,680
5. Step 5: Solve for x
   x = 68,139,886,224,847,680/171,345,783
6. Step 6: Final answer
   x = 397,674,719.69