Finding the Third Proportional to 770,588 and 1,672,488

Step by Step Solution

1. Step 1: Write the proportion equation
   770,588 : 1,672,488 = 1,672,488 : x
2. Step 2: Convert to fraction form
   770,588/1,672,488 = 1,672,488/x
3. Step 3: Cross multiply
   770,588x = 1,672,488 × 1,672,488
4. Step 4: Simplify right side
   770,588x = 2,797,216,110,144
5. Step 5: Solve for x
   x = 2,797,216,110,144/770,588
6. Step 6: Final answer
   x = 3,629,976.21