Finding the Third Proportional to 359,687 and 787,900

Step by Step Solution

1. Step 1: Write the proportion equation
   359,687 : 787,900 = 787,900 : x
2. Step 2: Convert to fraction form
   359,687/787,900 = 787,900/x
3. Step 3: Cross multiply
   359,687x = 787,900 × 787,900
4. Step 4: Simplify right side
   359,687x = 620,786,410,000
5. Step 5: Solve for x
   x = 620,786,410,000/359,687
6. Step 6: Final answer
   x = 1,725,907.27