Finding the Third Proportional to 611,822 and 1,312,189

Step by Step Solution

1. Step 1: Write the proportion equation
   611,822 : 1,312,189 = 1,312,189 : x
2. Step 2: Convert to fraction form
   611,822/1,312,189 = 1,312,189/x
3. Step 3: Cross multiply
   611,822x = 1,312,189 × 1,312,189
4. Step 4: Simplify right side
   611,822x = 1,721,839,971,721
5. Step 5: Solve for x
   x = 1,721,839,971,721/611,822
6. Step 6: Final answer
   x = 2,814,282.54