Finding the Third Proportional to 400,087 and 619,084.50

Step by Step Solution

1. Step 1: Write the proportion equation
   400,087 : 619,084.50 = 619,084.50 : x
2. Step 2: Convert to fraction form
   400,087/619,084.50 = 619,084.50/x
3. Step 3: Cross multiply
   400,087x = 619,084.50 × 619,084.50
4. Step 4: Simplify right side
   400,087x = 383,265,618,140.25
5. Step 5: Solve for x
   x = 383,265,618,140.25/400,087
6. Step 6: Final answer
   x = 957,955.69