Finding the Third Proportional to 912,840 and 1,335,456

Step by Step Solution

1. Step 1: Write the proportion equation
   912,840 : 1,335,456 = 1,335,456 : x
2. Step 2: Convert to fraction form
   912,840/1,335,456 = 1,335,456/x
3. Step 3: Cross multiply
   912,840x = 1,335,456 × 1,335,456
4. Step 4: Simplify right side
   912,840x = 1,783,442,727,936
5. Step 5: Solve for x
   x = 1,783,442,727,936/912,840
6. Step 6: Final answer
   x = 1,953,729.82