Finding the Third Proportional to 645,036 and 1,375,620

Step by Step Solution

1. Step 1: Write the proportion equation
   645,036 : 1,375,620 = 1,375,620 : x
2. Step 2: Convert to fraction form
   645,036/1,375,620 = 1,375,620/x
3. Step 3: Cross multiply
   645,036x = 1,375,620 × 1,375,620
4. Step 4: Simplify right side
   645,036x = 1,892,330,384,400
5. Step 5: Solve for x
   x = 1,892,330,384,400/645,036
6. Step 6: Final answer
   x = 2,933,681.82