Finding the Third Proportional to 195,922.50 and 400,146

Step by Step Solution

1. Step 1: Write the proportion equation
   195,922.50 : 400,146 = 400,146 : x
2. Step 2: Convert to fraction form
   195,922.50/400,146 = 400,146/x
3. Step 3: Cross multiply
   195,922.50x = 400,146 × 400,146
4. Step 4: Simplify right side
   195,922.50x = 160,116,821,316
5. Step 5: Solve for x
   x = 160,116,821,316/195,922.50
6. Step 6: Final answer
   x = 817,245.70