Finding the Third Proportional to 186,974 and 400,515.50

Step by Step Solution

1. Step 1: Write the proportion equation
   186,974 : 400,515.50 = 400,515.50 : x
2. Step 2: Convert to fraction form
   186,974/400,515.50 = 400,515.50/x
3. Step 3: Cross multiply
   186,974x = 400,515.50 × 400,515.50
4. Step 4: Simplify right side
   186,974x = 160,412,665,740.25
5. Step 5: Solve for x
   x = 160,412,665,740.25/186,974
6. Step 6: Final answer
   x = 857,941.03