Finding the Third Proportional to 570,890 and 1,243,488

Step by Step Solution

1. Step 1: Write the proportion equation
   570,890 : 1,243,488 = 1,243,488 : x
2. Step 2: Convert to fraction form
   570,890/1,243,488 = 1,243,488/x
3. Step 3: Cross multiply
   570,890x = 1,243,488 × 1,243,488
4. Step 4: Simplify right side
   570,890x = 1,546,262,406,144
5. Step 5: Solve for x
   x = 1,546,262,406,144/570,890
6. Step 6: Final answer
   x = 2,708,511.98