Finding the Third Proportional to 218,315.25 and 333,304.88

Step by Step Solution

1. Step 1: Write the proportion equation
   218,315.25 : 333,304.88 = 333,304.88 : x
2. Step 2: Convert to fraction form
   218,315.25/333,304.88 = 333,304.88/x
3. Step 3: Cross multiply
   218,315.25x = 333,304.88 × 333,304.88
4. Step 4: Simplify right side
   218,315.25x = 111,092,139,698.77
5. Step 5: Solve for x
   x = 111,092,139,698.77/218,315.25
6. Step 6: Final answer
   x = 508,861.11