Finding the Third Proportional to 207,009 and 447,214.50

Step by Step Solution

1. Step 1: Write the proportion equation
   207,009 : 447,214.50 = 447,214.50 : x
2. Step 2: Convert to fraction form
   207,009/447,214.50 = 447,214.50/x
3. Step 3: Cross multiply
   207,009x = 447,214.50 × 447,214.50
4. Step 4: Simplify right side
   207,009x = 200,000,809,010.25
5. Step 5: Solve for x
   x = 200,000,809,010.25/207,009
6. Step 6: Final answer
   x = 966,145.48