Finding the Third Proportional to 209,911.50 and 452,988

Step by Step Solution

1. Step 1: Write the proportion equation
   209,911.50 : 452,988 = 452,988 : x
2. Step 2: Convert to fraction form
   209,911.50/452,988 = 452,988/x
3. Step 3: Cross multiply
   209,911.50x = 452,988 × 452,988
4. Step 4: Simplify right side
   209,911.50x = 205,198,128,144
5. Step 5: Solve for x
   x = 205,198,128,144/209,911.50
6. Step 6: Final answer
   x = 977,545.91