Finding the Third Proportional to 679,788 and 1,429,560

Step by Step Solution

1. Step 1: Write the proportion equation
   679,788 : 1,429,560 = 1,429,560 : x
2. Step 2: Convert to fraction form
   679,788/1,429,560 = 1,429,560/x
3. Step 3: Cross multiply
   679,788x = 1,429,560 × 1,429,560
4. Step 4: Simplify right side
   679,788x = 2,043,641,793,600
5. Step 5: Solve for x
   x = 2,043,641,793,600/679,788
6. Step 6: Final answer
   x = 3,006,292.83