Finding the Third Proportional to 709,290 and 1,556,388

Step by Step Solution

1. Step 1: Write the proportion equation
   709,290 : 1,556,388 = 1,556,388 : x
2. Step 2: Convert to fraction form
   709,290/1,556,388 = 1,556,388/x
3. Step 3: Cross multiply
   709,290x = 1,556,388 × 1,556,388
4. Step 4: Simplify right side
   709,290x = 2,422,343,606,544
5. Step 5: Solve for x
   x = 2,422,343,606,544/709,290
6. Step 6: Final answer
   x = 3,415,166.73