Finding the Third Proportional to 88,304 and 208,300

Step by Step Solution

1. Step 1: Write the proportion equation
   88,304 : 208,300 = 208,300 : x
2. Step 2: Convert to fraction form
   88,304/208,300 = 208,300/x
3. Step 3: Cross multiply
   88,304x = 208,300 × 208,300
4. Step 4: Simplify right side
   88,304x = 43,388,890,000
5. Step 5: Solve for x
   x = 43,388,890,000/88,304
6. Step 6: Final answer
   x = 491,358.15