Finding the Third Proportional to 611,824 and 1,312,222

Step by Step Solution

1. Step 1: Write the proportion equation
   611,824 : 1,312,222 = 1,312,222 : x
2. Step 2: Convert to fraction form
   611,824/1,312,222 = 1,312,222/x
3. Step 3: Cross multiply
   611,824x = 1,312,222 × 1,312,222
4. Step 4: Simplify right side
   611,824x = 1,721,926,577,284
5. Step 5: Solve for x
   x = 1,721,926,577,284/611,824
6. Step 6: Final answer
   x = 2,814,414.89