Finding the Third Proportional to 400,179 and 619,204.50

Step by Step Solution

1. Step 1: Write the proportion equation
   400,179 : 619,204.50 = 619,204.50 : x
2. Step 2: Convert to fraction form
   400,179/619,204.50 = 619,204.50/x
3. Step 3: Cross multiply
   400,179x = 619,204.50 × 619,204.50
4. Step 4: Simplify right side
   400,179x = 383,414,212,820.25
5. Step 5: Solve for x
   x = 383,414,212,820.25/400,179
6. Step 6: Final answer
   x = 958,106.78