Finding the Third Proportional to 315,388.69 and 471,776.91

Step by Step Solution

1. Step 1: Write the proportion equation
   315,388.69 : 471,776.91 = 471,776.91 : x
2. Step 2: Convert to fraction form
   315,388.69/471,776.91 = 471,776.91/x
3. Step 3: Cross multiply
   315,388.69x = 471,776.91 × 471,776.91
4. Step 4: Simplify right side
   315,388.69x = 222,573,449,270.82
5. Step 5: Solve for x
   x = 222,573,449,270.82/315,388.69
6. Step 6: Final answer
   x = 705,711.58