Finding the Third Proportional to 188,121 and 401,755.50

Step by Step Solution

1. Step 1: Write the proportion equation
   188,121 : 401,755.50 = 401,755.50 : x
2. Step 2: Convert to fraction form
   188,121/401,755.50 = 401,755.50/x
3. Step 3: Cross multiply
   188,121x = 401,755.50 × 401,755.50
4. Step 4: Simplify right side
   188,121x = 161,407,481,780.25
5. Step 5: Solve for x
   x = 161,407,481,780.25/188,121
6. Step 6: Final answer
   x = 857,998.21