Finding the Third Proportional to 645,103.50 and 1,024,860

Step by Step Solution

1. Step 1: Write the proportion equation
   645,103.50 : 1,024,860 = 1,024,860 : x
2. Step 2: Convert to fraction form
   645,103.50/1,024,860 = 1,024,860/x
3. Step 3: Cross multiply
   645,103.50x = 1,024,860 × 1,024,860
4. Step 4: Simplify right side
   645,103.50x = 1,050,338,019,600
5. Step 5: Solve for x
   x = 1,050,338,019,600/645,103.50
6. Step 6: Final answer
   x = 1,628,169.77