Finding the Third Proportional to 310,801.50 and 479,931

Step by Step Solution

1. Step 1: Write the proportion equation
   310,801.50 : 479,931 = 479,931 : x
2. Step 2: Convert to fraction form
   310,801.50/479,931 = 479,931/x
3. Step 3: Cross multiply
   310,801.50x = 479,931 × 479,931
4. Step 4: Simplify right side
   310,801.50x = 230,333,764,761
5. Step 5: Solve for x
   x = 230,333,764,761/310,801.50
6. Step 6: Final answer
   x = 741,096.05