Finding the Third Proportional to 313,176 and 475,990.50

Step by Step Solution

1. Step 1: Write the proportion equation
   313,176 : 475,990.50 = 475,990.50 : x
2. Step 2: Convert to fraction form
   313,176/475,990.50 = 475,990.50/x
3. Step 3: Cross multiply
   313,176x = 475,990.50 × 475,990.50
4. Step 4: Simplify right side
   313,176x = 226,566,956,090.25
5. Step 5: Solve for x
   x = 226,566,956,090.25/313,176
6. Step 6: Final answer
   x = 723,449.29