Finding the Third Proportional to 612,228 and 1,429,653

Step by Step Solution

1. Step 1: Write the proportion equation
   612,228 : 1,429,653 = 1,429,653 : x
2. Step 2: Convert to fraction form
   612,228/1,429,653 = 1,429,653/x
3. Step 3: Cross multiply
   612,228x = 1,429,653 × 1,429,653
4. Step 4: Simplify right side
   612,228x = 2,043,907,700,409
5. Step 5: Solve for x
   x = 2,043,907,700,409/612,228
6. Step 6: Final answer
   x = 3,338,474.72