Finding the Third Proportional to 315,188 and 471,666

Step by Step Solution

1. Step 1: Write the proportion equation
   315,188 : 471,666 = 471,666 : x
2. Step 2: Convert to fraction form
   315,188/471,666 = 471,666/x
3. Step 3: Cross multiply
   315,188x = 471,666 × 471,666
4. Step 4: Simplify right side
   315,188x = 222,468,815,556
5. Step 5: Solve for x
   x = 222,468,815,556/315,188
6. Step 6: Final answer
   x = 705,828.95