Finding the Third Proportional to 721,142 and 1,556,525

Step by Step Solution

1. Step 1: Write the proportion equation
   721,142 : 1,556,525 = 1,556,525 : x
2. Step 2: Convert to fraction form
   721,142/1,556,525 = 1,556,525/x
3. Step 3: Cross multiply
   721,142x = 1,556,525 × 1,556,525
4. Step 4: Simplify right side
   721,142x = 2,422,770,075,625
5. Step 5: Solve for x
   x = 2,422,770,075,625/721,142
6. Step 6: Final answer
   x = 3,359,629.69