Finding the Third Proportional to 361,610 and 787,510

Step by Step Solution

1. Step 1: Write the proportion equation
   361,610 : 787,510 = 787,510 : x
2. Step 2: Convert to fraction form
   361,610/787,510 = 787,510/x
3. Step 3: Cross multiply
   361,610x = 787,510 × 787,510
4. Step 4: Simplify right side
   361,610x = 620,172,000,100
5. Step 5: Solve for x
   x = 620,172,000,100/361,610
6. Step 6: Final answer
   x = 1,715,030.00