Finding the Third Proportional to 645,899 and 1,508,632

Step by Step Solution

1. Step 1: Write the proportion equation
   645,899 : 1,508,632 = 1,508,632 : x
2. Step 2: Convert to fraction form
   645,899/1,508,632 = 1,508,632/x
3. Step 3: Cross multiply
   645,899x = 1,508,632 × 1,508,632
4. Step 4: Simplify right side
   645,899x = 2,275,970,511,424
5. Step 5: Solve for x
   x = 2,275,970,511,424/645,899
6. Step 6: Final answer
   x = 3,523,725.09