Finding the Third Proportional to 212,938.50 and 465,723

Step by Step Solution

1. Step 1: Write the proportion equation
   212,938.50 : 465,723 = 465,723 : x
2. Step 2: Convert to fraction form
   212,938.50/465,723 = 465,723/x
3. Step 3: Cross multiply
   212,938.50x = 465,723 × 465,723
4. Step 4: Simplify right side
   212,938.50x = 216,897,912,729
5. Step 5: Solve for x
   x = 216,897,912,729/212,938.50
6. Step 6: Final answer
   x = 1,018,594.16