Finding the Third Proportional to 816,208 and 1,772,200

Step by Step Solution

1. Step 1: Write the proportion equation
   816,208 : 1,772,200 = 1,772,200 : x
2. Step 2: Convert to fraction form
   816,208/1,772,200 = 1,772,200/x
3. Step 3: Cross multiply
   816,208x = 1,772,200 × 1,772,200
4. Step 4: Simplify right side
   816,208x = 3,140,692,840,000
5. Step 5: Solve for x
   x = 3,140,692,840,000/816,208
6. Step 6: Final answer
   x = 3,847,907.45