Finding the Third Proportional to 315,218.50 and 471,714

Step by Step Solution

1. Step 1: Write the proportion equation
   315,218.50 : 471,714 = 471,714 : x
2. Step 2: Convert to fraction form
   315,218.50/471,714 = 471,714/x
3. Step 3: Cross multiply
   315,218.50x = 471,714 × 471,714
4. Step 4: Simplify right side
   315,218.50x = 222,514,097,796
5. Step 5: Solve for x
   x = 222,514,097,796/315,218.50
6. Step 6: Final answer
   x = 705,904.31