Finding the Third Proportional to 422,300.30 and 911,030.73

Step by Step Solution

1. Step 1: Write the proportion equation
   422,300.30 : 911,030.73 = 911,030.73 : x
2. Step 2: Convert to fraction form
   422,300.30/911,030.73 = 911,030.73/x
3. Step 3: Cross multiply
   422,300.30x = 911,030.73 × 911,030.73
4. Step 4: Simplify right side
   422,300.30x = 829,976,991,858.42
5. Step 5: Solve for x
   x = 829,976,991,858.42/422,300.30
6. Step 6: Final answer
   x = 1,965,371.53