Finding the Third Proportional to 856,418 and 1,865,358

Step by Step Solution

1. Step 1: Write the proportion equation
   856,418 : 1,865,358 = 1,865,358 : x
2. Step 2: Convert to fraction form
   856,418/1,865,358 = 1,865,358/x
3. Step 3: Cross multiply
   856,418x = 1,865,358 × 1,865,358
4. Step 4: Simplify right side
   856,418x = 3,479,560,468,164
5. Step 5: Solve for x
   x = 3,479,560,468,164/856,418
6. Step 6: Final answer
   x = 4,062,923.09