Finding the Third Proportional to 718,647 and 1,564,790

Step by Step Solution

1. Step 1: Write the proportion equation
   718,647 : 1,564,790 = 1,564,790 : x
2. Step 2: Convert to fraction form
   718,647/1,564,790 = 1,564,790/x
3. Step 3: Cross multiply
   718,647x = 1,564,790 × 1,564,790
4. Step 4: Simplify right side
   718,647x = 2,448,567,744,100
5. Step 5: Solve for x
   x = 2,448,567,744,100/718,647
6. Step 6: Final answer
   x = 3,407,191.21