Finding the Third Proportional to 400,075.50 and 619,068

Step by Step Solution

1. Step 1: Write the proportion equation
   400,075.50 : 619,068 = 619,068 : x
2. Step 2: Convert to fraction form
   400,075.50/619,068 = 619,068/x
3. Step 3: Cross multiply
   400,075.50x = 619,068 × 619,068
4. Step 4: Simplify right side
   400,075.50x = 383,245,188,624
5. Step 5: Solve for x
   x = 383,245,188,624/400,075.50
6. Step 6: Final answer
   x = 957,932.16