Finding the Third Proportional to 422,901 and 911,819.53

Step by Step Solution

1. Step 1: Write the proportion equation
   422,901 : 911,819.53 = 911,819.53 : x
2. Step 2: Convert to fraction form
   422,901/911,819.53 = 911,819.53/x
3. Step 3: Cross multiply
   422,901x = 911,819.53 × 911,819.53
4. Step 4: Simplify right side
   422,901x = 831,414,857,568.97
5. Step 5: Solve for x
   x = 831,414,857,568.97/422,901
6. Step 6: Final answer
   x = 1,965,979.88