Finding the Third Proportional to 402,862.50 and 877,653

Step by Step Solution

1. Step 1: Write the proportion equation
   402,862.50 : 877,653 = 877,653 : x
2. Step 2: Convert to fraction form
   402,862.50/877,653 = 877,653/x
3. Step 3: Cross multiply
   402,862.50x = 877,653 × 877,653
4. Step 4: Simplify right side
   402,862.50x = 770,274,788,409
5. Step 5: Solve for x
   x = 770,274,788,409/402,862.50
6. Step 6: Final answer
   x = 1,912,004.19