Finding the Third Proportional to 359,887 and 787,570

Step by Step Solution

1. Step 1: Write the proportion equation
   359,887 : 787,570 = 787,570 : x
2. Step 2: Convert to fraction form
   359,887/787,570 = 787,570/x
3. Step 3: Cross multiply
   359,887x = 787,570 × 787,570
4. Step 4: Simplify right side
   359,887x = 620,266,504,900
5. Step 5: Solve for x
   x = 620,266,504,900/359,887
6. Step 6: Final answer
   x = 1,723,503.50