Finding the Third Proportional to 611,366 and 1,438,518

Step by Step Solution

1. Step 1: Write the proportion equation
   611,366 : 1,438,518 = 1,438,518 : x
2. Step 2: Convert to fraction form
   611,366/1,438,518 = 1,438,518/x
3. Step 3: Cross multiply
   611,366x = 1,438,518 × 1,438,518
4. Step 4: Simplify right side
   611,366x = 2,069,334,036,324
5. Step 5: Solve for x
   x = 2,069,334,036,324/611,366
6. Step 6: Final answer
   x = 3,384,771.21