Finding the Third Proportional to 186,315.75 and 404,140.50

Step by Step Solution

1. Step 1: Write the proportion equation
   186,315.75 : 404,140.50 = 404,140.50 : x
2. Step 2: Convert to fraction form
   186,315.75/404,140.50 = 404,140.50/x
3. Step 3: Cross multiply
   186,315.75x = 404,140.50 × 404,140.50
4. Step 4: Simplify right side
   186,315.75x = 163,329,543,740.25
5. Step 5: Solve for x
   x = 163,329,543,740.25/186,315.75
6. Step 6: Final answer
   x = 876,627.68