Finding the Third Proportional to 820,522 and 1,772,268

Step by Step Solution

1. Step 1: Write the proportion equation
   820,522 : 1,772,268 = 1,772,268 : x
2. Step 2: Convert to fraction form
   820,522/1,772,268 = 1,772,268/x
3. Step 3: Cross multiply
   820,522x = 1,772,268 × 1,772,268
4. Step 4: Simplify right side
   820,522x = 3,140,933,863,824
5. Step 5: Solve for x
   x = 3,140,933,863,824/820,522
6. Step 6: Final answer
   x = 3,827,970.32