Finding the Third Proportional to 422,749.50 and 887,040

Step by Step Solution

1. Step 1: Write the proportion equation
   422,749.50 : 887,040 = 887,040 : x
2. Step 2: Convert to fraction form
   422,749.50/887,040 = 887,040/x
3. Step 3: Cross multiply
   422,749.50x = 887,040 × 887,040
4. Step 4: Simplify right side
   422,749.50x = 786,839,961,600
5. Step 5: Solve for x
   x = 786,839,961,600/422,749.50
6. Step 6: Final answer
   x = 1,861,243.98