Finding the Third Proportional to 209,200.50 and 457,281

Step by Step Solution

1. Step 1: Write the proportion equation
   209,200.50 : 457,281 = 457,281 : x
2. Step 2: Convert to fraction form
   209,200.50/457,281 = 457,281/x
3. Step 3: Cross multiply
   209,200.50x = 457,281 × 457,281
4. Step 4: Simplify right side
   209,200.50x = 209,105,912,961
5. Step 5: Solve for x
   x = 209,105,912,961/209,200.50
6. Step 6: Final answer
   x = 999,547.86