Finding the Third Proportional to 223,074 and 318,001.50

Step by Step Solution

1. Step 1: Write the proportion equation
   223,074 : 318,001.50 = 318,001.50 : x
2. Step 2: Convert to fraction form
   223,074/318,001.50 = 318,001.50/x
3. Step 3: Cross multiply
   223,074x = 318,001.50 × 318,001.50
4. Step 4: Simplify right side
   223,074x = 101,124,954,002.25
5. Step 5: Solve for x
   x = 101,124,954,002.25/223,074
6. Step 6: Final answer
   x = 453,324.70