Finding the Third Proportional to 206,128.50 and 452,898

Step by Step Solution

1. Step 1: Write the proportion equation
   206,128.50 : 452,898 = 452,898 : x
2. Step 2: Convert to fraction form
   206,128.50/452,898 = 452,898/x
3. Step 3: Cross multiply
   206,128.50x = 452,898 × 452,898
4. Step 4: Simplify right side
   206,128.50x = 205,116,598,404
5. Step 5: Solve for x
   x = 205,116,598,404/206,128.50
6. Step 6: Final answer
   x = 995,090.92