Finding the Third Proportional to 188,185,110 and 407,640,766

Step by Step Solution

1. Step 1: Write the proportion equation
   188,185,110 : 407,640,766 = 407,640,766 : x
2. Step 2: Convert to fraction form
   188,185,110/407,640,766 = 407,640,766/x
3. Step 3: Cross multiply
   188,185,110x = 407,640,766 × 407,640,766
4. Step 4: Simplify right side
   188,185,110x = 166,170,994,105,066,752
5. Step 5: Solve for x
   x = 166,170,994,105,066,752/188,185,110
6. Step 6: Final answer
   x = 883,018,821.76