Finding the Third Proportional to 295,632 and 648,488

Step by Step Solution

1. Step 1: Write the proportion equation
   295,632 : 648,488 = 648,488 : x
2. Step 2: Convert to fraction form
   295,632/648,488 = 648,488/x
3. Step 3: Cross multiply
   295,632x = 648,488 × 648,488
4. Step 4: Simplify right side
   295,632x = 420,536,686,144
5. Step 5: Solve for x
   x = 420,536,686,144/295,632
6. Step 6: Final answer
   x = 1,422,500.56