Finding the Third Proportional to 816,156 and 1,224,240

Step by Step Solution

1. Step 1: Write the proportion equation
   816,156 : 1,224,240 = 1,224,240 : x
2. Step 2: Convert to fraction form
   816,156/1,224,240 = 1,224,240/x
3. Step 3: Cross multiply
   816,156x = 1,224,240 × 1,224,240
4. Step 4: Simplify right side
   816,156x = 1,498,763,577,600
5. Step 5: Solve for x
   x = 1,498,763,577,600/816,156
6. Step 6: Final answer
   x = 1,836,369.00