Finding the Third Proportional to 859,972 and 1,869,200

Step by Step Solution

1. Step 1: Write the proportion equation
   859,972 : 1,869,200 = 1,869,200 : x
2. Step 2: Convert to fraction form
   859,972/1,869,200 = 1,869,200/x
3. Step 3: Cross multiply
   859,972x = 1,869,200 × 1,869,200
4. Step 4: Simplify right side
   859,972x = 3,493,908,640,000
5. Step 5: Solve for x
   x = 3,493,908,640,000/859,972
6. Step 6: Final answer
   x = 4,062,816.74