Finding the Third Proportional to 572,404 and 1,243,216

Step by Step Solution

1. Step 1: Write the proportion equation
   572,404 : 1,243,216 = 1,243,216 : x
2. Step 2: Convert to fraction form
   572,404/1,243,216 = 1,243,216/x
3. Step 3: Cross multiply
   572,404x = 1,243,216 × 1,243,216
4. Step 4: Simplify right side
   572,404x = 1,545,586,022,656
5. Step 5: Solve for x
   x = 1,545,586,022,656/572,404
6. Step 6: Final answer
   x = 2,700,166.36