Finding the Third Proportional to 203,499 and 434,017.50

Step by Step Solution

1. Step 1: Write the proportion equation
   203,499 : 434,017.50 = 434,017.50 : x
2. Step 2: Convert to fraction form
   203,499/434,017.50 = 434,017.50/x
3. Step 3: Cross multiply
   203,499x = 434,017.50 × 434,017.50
4. Step 4: Simplify right side
   203,499x = 188,371,190,306.25
5. Step 5: Solve for x
   x = 188,371,190,306.25/203,499
6. Step 6: Final answer
   x = 925,661.50