Finding the Third Proportional to 856,318 and 1,865,200

Step by Step Solution

1. Step 1: Write the proportion equation
   856,318 : 1,865,200 = 1,865,200 : x
2. Step 2: Convert to fraction form
   856,318/1,865,200 = 1,865,200/x
3. Step 3: Cross multiply
   856,318x = 1,865,200 × 1,865,200
4. Step 4: Simplify right side
   856,318x = 3,478,971,040,000
5. Step 5: Solve for x
   x = 3,478,971,040,000/856,318
6. Step 6: Final answer
   x = 4,062,709.23