Finding the Third Proportional to 295,788 and 647,550

Step by Step Solution

1. Step 1: Write the proportion equation
   295,788 : 647,550 = 647,550 : x
2. Step 2: Convert to fraction form
   295,788/647,550 = 647,550/x
3. Step 3: Cross multiply
   295,788x = 647,550 × 647,550
4. Step 4: Simplify right side
   295,788x = 419,321,002,500
5. Step 5: Solve for x
   x = 419,321,002,500/295,788
6. Step 6: Final answer
   x = 1,417,640.35