Finding the Third Proportional to 207,636 and 451,288.50

Step by Step Solution

1. Step 1: Write the proportion equation
   207,636 : 451,288.50 = 451,288.50 : x
2. Step 2: Convert to fraction form
   207,636/451,288.50 = 451,288.50/x
3. Step 3: Cross multiply
   207,636x = 451,288.50 × 451,288.50
4. Step 4: Simplify right side
   207,636x = 203,661,310,232.25
5. Step 5: Solve for x
   x = 203,661,310,232.25/207,636
6. Step 6: Final answer
   x = 980,857.42