Finding the Third Proportional to 402,853.50 and 877,635

Step by Step Solution

1. Step 1: Write the proportion equation
   402,853.50 : 877,635 = 877,635 : x
2. Step 2: Convert to fraction form
   402,853.50/877,635 = 877,635/x
3. Step 3: Cross multiply
   402,853.50x = 877,635 × 877,635
4. Step 4: Simplify right side
   402,853.50x = 770,243,193,225
5. Step 5: Solve for x
   x = 770,243,193,225/402,853.50
6. Step 6: Final answer
   x = 1,911,968.48