Finding the Third Proportional to 709,409 and 1,556,784

Step by Step Solution

1. Step 1: Write the proportion equation
   709,409 : 1,556,784 = 1,556,784 : x
2. Step 2: Convert to fraction form
   709,409/1,556,784 = 1,556,784/x
3. Step 3: Cross multiply
   709,409x = 1,556,784 × 1,556,784
4. Step 4: Simplify right side
   709,409x = 2,423,576,422,656
5. Step 5: Solve for x
   x = 2,423,576,422,656/709,409
6. Step 6: Final answer
   x = 3,416,331.65