Finding the Third Proportional to 510,050 and 787,020

Step by Step Solution

1. Step 1: Write the proportion equation
   510,050 : 787,020 = 787,020 : x
2. Step 2: Convert to fraction form
   510,050/787,020 = 787,020/x
3. Step 3: Cross multiply
   510,050x = 787,020 × 787,020
4. Step 4: Simplify right side
   510,050x = 619,400,480,400
5. Step 5: Solve for x
   x = 619,400,480,400/510,050
6. Step 6: Final answer
   x = 1,214,391.69