Finding the Third Proportional to 434,810 and 650,216

Step by Step Solution

1. Step 1: Write the proportion equation
   434,810 : 650,216 = 650,216 : x
2. Step 2: Convert to fraction form
   434,810/650,216 = 650,216/x
3. Step 3: Cross multiply
   434,810x = 650,216 × 650,216
4. Step 4: Simplify right side
   434,810x = 422,780,846,656
5. Step 5: Solve for x
   x = 422,780,846,656/434,810
6. Step 6: Final answer
   x = 972,334.69