Finding the Third Proportional to 613,470 and 1,312,228

Step by Step Solution

1. Step 1: Write the proportion equation
   613,470 : 1,312,228 = 1,312,228 : x
2. Step 2: Convert to fraction form
   613,470/1,312,228 = 1,312,228/x
3. Step 3: Cross multiply
   613,470x = 1,312,228 × 1,312,228
4. Step 4: Simplify right side
   613,470x = 1,721,942,323,984
5. Step 5: Solve for x
   x = 1,721,942,323,984/613,470
6. Step 6: Final answer
   x = 2,806,889.21