Finding the Third Proportional to 783,674 and 1,721,470

Step by Step Solution

1. Step 1: Write the proportion equation
   783,674 : 1,721,470 = 1,721,470 : x
2. Step 2: Convert to fraction form
   783,674/1,721,470 = 1,721,470/x
3. Step 3: Cross multiply
   783,674x = 1,721,470 × 1,721,470
4. Step 4: Simplify right side
   783,674x = 2,963,458,960,900
5. Step 5: Solve for x
   x = 2,963,458,960,900/783,674
6. Step 6: Final answer
   x = 3,781,494.55