Finding the Third Proportional to 645,760.50 and 1,344,630

Step by Step Solution

1. Step 1: Write the proportion equation
   645,760.50 : 1,344,630 = 1,344,630 : x
2. Step 2: Convert to fraction form
   645,760.50/1,344,630 = 1,344,630/x
3. Step 3: Cross multiply
   645,760.50x = 1,344,630 × 1,344,630
4. Step 4: Simplify right side
   645,760.50x = 1,808,029,836,900
5. Step 5: Solve for x
   x = 1,808,029,836,900/645,760.50
6. Step 6: Final answer
   x = 2,799,845.82