Finding the Third Proportional to 853,872 and 1,834,380

Step by Step Solution

1. Step 1: Write the proportion equation
   853,872 : 1,834,380 = 1,834,380 : x
2. Step 2: Convert to fraction form
   853,872/1,834,380 = 1,834,380/x
3. Step 3: Cross multiply
   853,872x = 1,834,380 × 1,834,380
4. Step 4: Simplify right side
   853,872x = 3,364,949,984,400
5. Step 5: Solve for x
   x = 3,364,949,984,400/853,872
6. Step 6: Final answer
   x = 3,940,813.12