Finding the Third Proportional to 402,811.50 and 877,524

Step by Step Solution

1. Step 1: Write the proportion equation
   402,811.50 : 877,524 = 877,524 : x
2. Step 2: Convert to fraction form
   402,811.50/877,524 = 877,524/x
3. Step 3: Cross multiply
   402,811.50x = 877,524 × 877,524
4. Step 4: Simplify right side
   402,811.50x = 770,048,370,576
5. Step 5: Solve for x
   x = 770,048,370,576/402,811.50
6. Step 6: Final answer
   x = 1,911,684.18